Macbook Pro restarted suddenly

Experienced some screen distortion before my 15" MBP restarted suddenly and gave me the error message "Your computer had to restart because of an error". Below is my error report. Could someone please let me know what happened and if I have to worry about this?

Interval Since Last Panic Report: 3160039 sec

Panics Since Last Report: 1

Anonymous UUID: BBE50506-1970-3887-6709-5116331521C9

Mon Mar 4 16:26:03 2013

panic(cpu 2 caller 0xffffff80026167af): "ipc_right_terminate: strange type - 0x170000"@/SourceCache/xnu/xnu-2050.18.24/osfmk/ipc/ipc_right.c:663

Backtrace (CPU 2), Frame : Return Address

0xffffff80f32ebd70 : 0xffffff800261d626

0xffffff80f32ebde0 : 0xffffff80026167af

0xffffff80f32ebe50 : 0xffffff800261831c

0xffffff80f32ebe90 : 0xffffff8002635a20

0xffffff80f32ebed0 : 0xffffff8002956607

0xffffff80f32ebf40 : 0xffffff80029563a9

0xffffff80f32ebf50 : 0xffffff80029e182a

0xffffff80f32ebfb0 : 0xffffff80026ced33

BSD process name corresponding to current thread: ManagedClient

Mac OS version:

12C60

Kernel version:

Darwin Kernel Version 12.2.0: Sat Aug 25 00:48:52 PDT 2012; root:xnu-2050.18.24~1/RELEASE_X86_64

Kernel UUID: 69A5853F-375A-3EF4-9247-478FD0247333

Kernel slide: 0x0000000002400000

Kernel text base: 0xffffff8002600000

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

System uptime in nanoseconds: 126389807034354

last loaded kext at 123729452243199: com.sophos.kext.sav 8.0.4 (addr 0xffffff7f84a12000, size 24576)

last unloaded kext at 123663349284181: com.sophos.kext.sav 8.0.4 (addr 0xffffff7f84a0d000, size 20480)

loaded kexts:

com.sophos.kext.sav 8.0.4

com.github.osxfuse.filesystems.osxfusefs 2.5.1

com.apple.filesystems.smbfs 1.8

com.apple.driver.AppleHWSensor 1.9.5d0

com.apple.driver.AudioAUUC 1.60

com.apple.driver.AGPM 100.12.69

com.apple.driver.AppleMikeyHIDDriver 122

com.apple.driver.AppleUpstreamUserClient 3.5.10

com.apple.kext.AMDFramebuffer 8.0.0

com.apple.driver.AppleHDA 2.3.1f2

com.apple.iokit.IOUserEthernet 1.0.0d1

com.apple.driver.AppleMikeyDriver 2.3.1f2

com.apple.AMDRadeonAccelerator 1.0.0

com.apple.driver.AppleIntelHD3000Graphics 8.0.0

com.apple.iokit.IOBluetoothSerialManager 4.0.9f33

com.apple.iokit.BroadcomBluetoothHCIControllerUSBTransport 4.0.9f33

com.apple.driver.AppleSMCLMU 2.0.2d0

com.apple.driver.SMCMotionSensor 3.0.2d6

com.apple.Dont_Steal_Mac_OS_X 7.0.0

com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0

com.apple.driver.AppleSMCPDRC 1.0.0

com.apple.filesystems.autofs 3.0

com.apple.driver.AppleMuxControl 3.2.11

com.apple.driver.ApplePolicyControl 3.2.11

com.apple.driver.AppleLPC 1.6.0

com.apple.driver.AppleIntelSNBGraphicsFB 8.0.0

com.apple.driver.AppleMCCSControl 1.0.33

com.apple.driver.AppleUSBTCButtons 235.4

com.apple.driver.AppleUSBTCKeyboard 235.4

com.apple.driver.AppleIRController 320.15

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1

com.apple.BootCache 34

com.apple.iokit.SCSITaskUserClient 3.5.1

com.apple.driver.XsanFilter 404

com.apple.iokit.IOAHCIBlockStorage 2.2.2

com.apple.driver.AppleUSBHub 5.2.5

com.apple.driver.AppleSDXC 1.2.2

com.apple.driver.AirPort.Brcm4331 602.15.22

com.apple.iokit.AppleBCM5701Ethernet 3.2.5b3

com.apple.driver.AppleFWOHCI 4.9.6

com.apple.driver.AppleAHCIPort 2.4.1

com.apple.driver.AppleUSBEHCI 5.4.0

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.DspFuncLib 2.3.1f2

com.apple.iokit.IOAudioFamily 1.8.9fc10

com.apple.kext.OSvKernDSPLib 1.6

com.apple.iokit.IOSurface 86.0.3

com.apple.iokit.IOAcceleratorFamily 19.0.26

com.apple.iokit.IOSerialFamily 10.0.6

com.apple.iokit.IOBluetoothFamily 4.0.9f33

com.apple.iokit.AppleBluetoothHCIControllerUSBTransport 4.0.9f33

com.apple.kext.AMD6000Controller 8.0.0

com.apple.kext.AMDSupport 8.0.0

com.apple.driver.IOPlatformPluginLegacy 1.0.0

com.apple.driver.AppleSMC 3.1.4d2

com.apple.driver.AppleSMBusPCI 1.0.10d0

com.apple.kext.triggers 1.0

com.apple.driver.AppleGraphicsControl 3.2.11

com.apple.driver.IOPlatformPluginFamily 5.2.0d16

com.apple.iokit.IOFireWireIP 2.2.5

com.apple.driver.AppleBacklightExpert 1.0.4

com.apple.iokit.IONDRVSupport 2.3.5

com.apple.driver.AppleSMBusController 1.0.10d0

com.apple.driver.AppleHDAController 2.3.1f2

com.apple.iokit.IOGraphicsFamily 2.3.5

com.apple.iokit.IOHDAFamily 2.3.1f2

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 5.2.5

com.apple.driver.AppleUSBMergeNub 5.2.5

com.apple.driver.AppleUSBComposite 5.2.5

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 2.1.1

com.apple.iokit.IOUSBUserClient 5.2.5

com.apple.iokit.IO80211Family 500.15

com.apple.iokit.IOEthernetAVBController 1.0.2b1

com.apple.iokit.IONetworkingFamily 3.0

com.apple.iokit.IOFireWireFamily 4.5.5

com.apple.iokit.IOAHCIFamily 2.2.1

com.apple.iokit.IOUSBFamily 5.4.0

com.apple.driver.AppleEFIRuntime 1.6.1

com.apple.iokit.IOHIDFamily 1.8.0

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 28.21

com.apple.driver.AppleACPIPlatform 1.6

com.apple.iokit.IOPCIFamily 2.7.2

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 GHz, 8 GB, SMC 1.69f4

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

Graphics: AMD Radeon HD 6490M, AMD Radeon HD 6490M, PCIe, 256 MB

Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54333531533642465238432D48392020

Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54333531533642465238432D48392020

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xD6), Broadcom BCM43xx 1.0 (5.106.98.81.22)

Bluetooth: Version 4.0.9f33 10885, 2 service, 11 devices, 1 incoming serial ports

Network Service: AirPort, AirPort, en1

Serial ATA Device: TOSHIBA MK5065GSXF, 500.11 GB

Serial ATA Device: HL-DT-ST DVDRW GS31N

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

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

USB Device: hub_device, 0x0424 (SMSC), 0x2513, 0xfa100000 / 3

USB Device: Apple Internal Keyboard / Trackpad, apple_vendor_id, 0x0245, 0xfa120000 / 5

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

USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x821a, 0xfa113000 / 8

USB Device: FaceTime HD Camera (Built-in), apple_vendor_id, 0x8509, 0xfa200000 / 2