Macbook pro (late 2011) randomly reboots

Since June this year I have a macbook pro late 2011.

Use it for work, mostly for video editting with Adobe Premiere CS6.

Since a month i get these really anoyying messages that say "Your computer needs to restart because of a problem."

The things i did since i got the macbook:

- add 8gb internal memory instead of 4

- install the update mountain lion

before these changes, i got only one time the message of the problem.

now i got it last night two times, and this morning one time.

I want to know what the problem causes.

The last thing i want is to send my mac back to apple.

I got it for two almost 3 months now... This should not be possible with a computer of 1300 euros and only two months old........

This is the message repport i get after the automatic reboot:

Interval Since Last Panic Report: 116296 sec

Panics Since Last Report: 2

Anonymous UUID: 6CF2DC87-6DF9-4835-85B4-B445DDD60EA7

Wed Aug 29 10:39:14 2012

panic(cpu 4 caller 0xffffff802bcb7b95): Kernel trap at 0xffffff802bc7c1a3, type 14=page fault, registers:

CR0: 0x0000000080010033, CR2: 0x0000000000000008, CR3: 0x000000000b017056, CR4: 0x00000000000606e0

RAX: 0x0000000000000000, RBX: 0xffffff80318d33d0, RCX: 0xffffff8041785aa0, RDX: 0xffffff802c2bca80

RSP: 0xffffff811bbdbcb0, RBP: 0xffffff811bbdbcc0, RSI: 0x0000000000000001, RDI: 0xffffff80318d33d0

R8: 0x0000000000000001, R9: 0x0000000000000000, R10: 0x0000000004c8f000, R11: 0x0000000000000004

R12: 0xffffff80435f6ce0, R13: 0xffffff8043a2c1c0, R14: 0xffffff802c2bbb50, R15: 0xffffff802c2bca80

RFL: 0x0000000000010286, RIP: 0xffffff802bc7c1a3, CS: 0x0000000000000008, SS: 0x0000000000000000

Fault CR2: 0x0000000000000008, Error code: 0x0000000000000002, Fault CPU: 0x4

Backtrace (CPU 4), Frame : Return Address

0xffffff811bbdb950 : 0xffffff802bc1d5f6

0xffffff811bbdb9c0 : 0xffffff802bcb7b95

0xffffff811bbdbb90 : 0xffffff802bcce4ad

0xffffff811bbdbbb0 : 0xffffff802bc7c1a3

0xffffff811bbdbcc0 : 0xffffff802bc80966

0xffffff811bbdbce0 : 0xffffff802bc88815

0xffffff811bbdbd10 : 0xffffff802bc87397

0xffffff811bbdbd40 : 0xffffff802bc7537d

0xffffff811bbdbdb0 : 0xffffff802bc62a8a

0xffffff811bbdbf40 : 0xffffff802bcb7f69

0xffffff811bbdbfb0 : 0xffffff802bcce3d1

BSD process name corresponding to current thread: Dropbox

Mac OS version:

12B19

Kernel version:

Darwin Kernel Version 12.1.0: Tue Aug 14 13:29:55 PDT 2012; root:xnu-2050.9.2~1/RELEASE_X86_64

Kernel UUID: 3005059E-270B-3B9F-940D-7A66C05DDC9D

Kernel slide: 0x000000002ba00000

Kernel text base: 0xffffff802bc00000

System model name: MacBookPro8,2 (Mac-94245A3940C91C80)

System uptime in nanoseconds: 139969618768

last loaded kext at 105180566748: com.apple.driver.AppleBluetoothMultitouch 75.15 (addr 0xffffff7fad985000, size 77824)

loaded kexts:

com.paragon-software.filesystems.ntfs 82

com.avast.PacketForwarder 1.3

com.avast.AvastFileShield 1.0.1

com.apple.driver.AppleBluetoothMultitouch 75.15

com.apple.driver.AppleHWSensor 1.9.5d0

com.apple.driver.IOBluetoothSCOAudioDriver 4.0.9f8

com.apple.driver.IOBluetoothA2DPAudioDriver 4.0.9f8

com.apple.iokit.IOBluetoothSerialManager 4.0.9f8

com.apple.driver.AudioAUUC 1.60

com.apple.driver.AppleTyMCEDriver 1.0.2d2

com.apple.driver.AGPM 100.12.69

com.apple.filesystems.autofs 3.0

com.apple.driver.AppleMikeyHIDDriver 122

com.apple.driver.AppleHDAHardwareConfigDriver 2.3.0f2

com.apple.driver.AppleHDA 2.3.0f2

com.apple.iokit.IOUserEthernet 1.0.0d1

com.apple.driver.AppleUpstreamUserClient 3.5.10

com.apple.kext.AMDFramebuffer 8.0.0

com.apple.iokit.IOBluetoothUSBDFU 4.0.9f8

com.apple.driver.AppleIntelHD3000Graphics 8.0.0

com.apple.driver.AppleMikeyDriver 2.3.0f2

com.apple.iokit.BroadcomBluetoothHCIControllerUSBTransport 4.0.9f8

com.apple.AMDRadeonAccelerator 1.0.0

com.apple.Dont_Steal_Mac_OS_X 7.0.0

com.apple.driver.AppleBacklight 170.2.3

com.apple.driver.AppleMCCSControl 1.0.33

com.apple.driver.AppleSMCLMU 2.0.2d0

com.apple.driver.AppleSMCPDRC 1.0.0

com.apple.driver.AppleLPC 1.6.0

com.apple.driver.AppleMuxControl 3.2.6

com.apple.driver.AppleIntelSNBGraphicsFB 8.0.0

com.apple.driver.SMCMotionSensor 3.0.2d6

com.apple.driver.ApplePolicyControl 3.2.6

com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0

com.apple.driver.AppleUSBTCButtons 235.4

com.apple.driver.AppleUSBTCKeyEventDriver 235.4

com.apple.driver.AppleUSBTCKeyboard 235.4

com.apple.driver.AppleIRController 320.15

com.apple.iokit.SCSITaskUserClient 3.5.1

com.apple.driver.AppleFileSystemDriver 3.0.1

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1

com.apple.BootCache 34

com.apple.driver.XsanFilter 404

com.apple.iokit.IOAHCIBlockStorage 2.2.1

com.apple.driver.AppleUSBHub 5.1.6

com.apple.driver.AppleFWOHCI 4.9.5

com.apple.driver.AppleSDXC 1.2.2

com.apple.driver.AirPort.Brcm4331 601.15.21

com.apple.iokit.AppleBCM5701Ethernet 3.2.5b3

com.apple.driver.AppleAHCIPort 2.4.0

com.apple.driver.AppleUSBEHCI 5.1.5

com.apple.driver.AppleUSBUHCI 5.1.5

com.apple.driver.AppleEFINVRAM 1.6.1

com.apple.driver.AppleSmartBatteryManager 161.0.0

com.apple.driver.AppleACPIButtons 1.6

com.apple.driver.AppleRTC 1.5

com.apple.driver.AppleHPET 1.7

com.apple.driver.AppleSMBIOS 1.9

com.apple.driver.AppleACPIEC 1.6

com.apple.driver.AppleAPIC 1.6

com.apple.driver.AppleIntelCPUPowerManagementClient 196.0.0

com.apple.nke.applicationfirewall 4.0.39

com.apple.security.quarantine 2

com.apple.driver.AppleIntelCPUPowerManagement 196.0.0

com.apple.driver.IOBluetoothHIDDriver 4.0.9f8

com.apple.driver.AppleMultitouchDriver 235.27

com.apple.iokit.IOSerialFamily 10.0.6

com.apple.kext.triggers 1.0

com.apple.driver.DspFuncLib 2.3.0f2

com.apple.iokit.IOAudioFamily 1.8.9fc9

com.apple.kext.OSvKernDSPLib 1.6

com.apple.iokit.IOSurface 86.0.2

com.apple.iokit.IOBluetoothFamily 4.0.9f8

com.apple.iokit.AppleBluetoothHCIControllerUSBTransport 4.0.9f8

com.apple.iokit.IOAcceleratorFamily 19.0.26

com.apple.iokit.IOFireWireIP 2.2.5

com.apple.driver.AppleThunderboltEDMSink 1.1.8

com.apple.driver.AppleThunderboltEDMSource 1.1.8

com.apple.driver.AppleThunderboltDPOutAdapter 1.8.5

com.apple.driver.AppleSMBusController 1.0.10d0

com.apple.driver.AppleSMBusPCI 1.0.10d0

com.apple.driver.AppleHDAController 2.3.0f2

com.apple.iokit.IOHDAFamily 2.3.0f2

com.apple.kext.AMD6000Controller 8.0.0

com.apple.kext.AMDSupport 8.0.0

com.apple.driver.AppleBacklightExpert 1.0.4

com.apple.driver.AppleGraphicsControl 3.2.6

com.apple.iokit.IONDRVSupport 2.3.4

com.apple.iokit.IOGraphicsFamily 2.3.4

com.apple.driver.AppleSMC 3.1.3d11

com.apple.driver.IOPlatformPluginLegacy 1.0.0

com.apple.driver.IOPlatformPluginFamily 5.2.0d16

com.apple.driver.AppleThunderboltDPInAdapter 1.8.5

com.apple.driver.AppleThunderboltDPAdapterFamily 1.8.5

com.apple.driver.AppleThunderboltPCIDownAdapter 1.2.5

com.apple.driver.AppleUSBMultitouch 235.7

com.apple.iokit.IOUSBHIDDriver 5.0.0

com.apple.driver.AppleUSBMergeNub 5.1.5

com.apple.driver.AppleUSBComposite 5.0.0

com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.5.1

com.apple.iokit.IOBDStorageFamily 1.7

com.apple.iokit.IODVDStorageFamily 1.7.1

com.apple.iokit.IOCDStorageFamily 1.7.1

com.apple.iokit.IOAHCISerialATAPI 2.5.0

com.apple.iokit.IOSCSIArchitectureModelFamily 3.5.1

com.apple.driver.AppleThunderboltNHI 1.6.0

com.apple.iokit.IOThunderboltFamily 2.0.3

com.apple.iokit.IOUSBUserClient 5.0.0

com.apple.iokit.IOFireWireFamily 4.5.5

com.apple.iokit.IO80211Family 500.15

com.apple.iokit.IOEthernetAVBController 1.0.2b1

com.apple.iokit.IONetworkingFamily 3.0

com.apple.iokit.IOAHCIFamily 2.2.0

com.apple.iokit.IOUSBFamily 5.1.6

com.apple.iokit.IOHIDFamily 1.8.0

com.apple.driver.AppleEFIRuntime 1.6.1

com.apple.iokit.IOSMBusFamily 1.1

com.apple.security.sandbox 220

com.apple.kext.AppleMatch 1.0.0d1

com.apple.security.TMSafetyNet 7

com.apple.driver.DiskImages 344

com.apple.iokit.IOStorageFamily 1.8

com.apple.driver.AppleKeyStore 28.18

com.apple.driver.AppleACPIPlatform 1.6

com.apple.iokit.IOPCIFamily 2.7

com.apple.iokit.IOACPIFamily 1.4

com.apple.kec.corecrypto 1.0

Model: MacBookPro8,2, BootROM MBP81.0047.B27, 4 processors, Intel Core i7, 2.2 GHz, 8 GB, SMC 1.69f3

Graphics: Intel HD Graphics 3000, Intel HD Graphics 3000, Built-In, 512 MB

Graphics: AMD Radeon HD 6750M, AMD Radeon HD 6750M, PCIe, 512 MB

Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1067 MHz, 0x029E, 0x434D5341344758334D314131303636433720

Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1067 MHz, 0x029E, 0x434D5341344758334D314131303636433720

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xD6), Broadcom BCM43xx 1.0 (5.106.98.81.21)

Bluetooth: Version 4.0.9f8 10405, 2 service, 18 devices, 1 incoming serial ports

Network Service: Wi-Fi, AirPort, en1

Serial ATA Device: ST9500325ASG, 500,11 GB

Serial ATA Device: MATSHITADVD-R UJ-8A8

USB Device: FaceTime HD Camera (Built-in), apple_vendor_id, 0x8509, 0xfa200000 / 3

USB Device: hub_device, 0x0424 (SMSC), 0x2513, 0xfa100000 / 2

USB Device: Apple Internal Keyboard / Trackpad, apple_vendor_id, 0x0253, 0xfa120000 / 5

USB Device: BRCM2070 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0xfa110000 / 4

USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x821a, 0xfa113000 / 6

USB Device: hub_device, 0x0424 (SMSC), 0x2513, 0xfd100000 / 2

USB Device: IR Receiver, apple_vendor_id, 0x8242, 0xfd110000 / 3