I will attempt the other advise, but I am not very advanced in computers.
This is the kernel panic report—
Interval Since Last Panic Report: 152585 sec
Panics Since Last Report: 1
Anonymous UUID: 9CE102BE-90E8-48EB-AB89-DDC3C5008423
Thu Sep 5 17:08:38 2013
panic(cpu 0 caller 0x2abf6a): Kernel trap at 0x00518788, type 14=page fault, registers:
CR0: 0x80010033, CR2: 0xff928770, CR3: 0x3c1d6000, CR4: 0x00000660
EAX: 0x05e6c280, EBX: 0x00000000, ECX: 0x00518742, EDX: 0xff928674
CR2: 0xff928770, EBP: 0x3671a808, ESI: 0x0603df40, EDI: 0x05e74780
EFL: 0x00010246, EIP: 0x00518788, CS: 0x00000008, DS: 0x05e60010
Error code: 0x00000000
Backtrace (CPU 0), Frame : Return Address (4 potential args on stack)
0x3671a608 : 0x21b837 (0x5dd7fc 0x3671a63c 0x223ce1 0x0)
0x3671a658 : 0x2abf6a (0x59e3d0 0x518788 0xe 0x59e59a)
0x3671a738 : 0x2a1a78 (0x3671a750 0x80 0x3671a808 0x518788)
0x3671a748 : 0x518788 (0xe 0x5e60048 0x36710010 0x550010)
0x3671a808 : 0x55dd2b (0x603df40 0x5e74780 0x2ca566b8 0x0)
0x3671a828 : 0x55d32c (0x5e74780 0x0 0x2 0x0)
0x3671a848 : 0x506769 (0x5e74780 0x0 0x0 0x7700800)
0x3671a868 : 0xc7ebf1 (0x5e74780 0x7700800 0x0 0x0)
0x3671a898 : 0xc7efa7 (0x25580000 0x81d1140 0x7700800 0x0)
0x3671a8b8 : 0xca1bce (0x81d1140 0x7700800 0x780 0x9c36800)
0x3671a8e8 : 0xca01a1 (0x2588e000 0x2588e788 0x1 0x0)
0x3671a908 : 0xcbbe93 (0x2588e000 0x2588e788 0x0 0x0)
0x3671a938 : 0xca1c64 (0x2588e000 0x3671aa7c 0x29e7e080 0x3cc080)
0x3671a978 : 0xc6bc93 (0x2588e000 0x3671aa7c 0x3671aa28 0x235975)
0x3671aab8 : 0xca55d8 (0x2588e000 0x1 0x3671abcc 0x3671abc8)
0x3671ab68 : 0xc67fe1 (0x2588e000 0x1 0x3671abcc 0x3671abc8)
0x3671abe8 : 0x56da06 (0x2588e000 0x0 0x3671ae3c 0x3671ac74)
0x3671ac38 : 0x56e2a5 (0xcf6720 0x2588e000 0x8ec0d88 0x1)
0x3671ac88 : 0x56eb59 (0x2588e000 0x10 0x3671acd0 0x0)
0x3671ada8 : 0x286638 (0x2588e000 0x10 0x8ec0d88 0x1)
0x3671be58 : 0x21dbe5 (0x8ec0d60 0x59ab5a0 0x1f8278 0x5633)
0x3671be98 : 0x210a86 (0x8ec0d00 0x0 0x80f55e0 0x8651180)
0x3671bef8 : 0x216f84 (0x8ec0d00 0x0 0x0 0x0)
0x3671bf78 : 0x295c57 (0x63e1888 0x0 0x0 0x0)
0x3671bfc8 : 0x2a256d (0x63e1884 0x0 0x10 0x63e1884)
Kernel Extensions in backtrace (with dependencies):
com.apple.GeForce(6.3.6)@0xc5c000->0xd12fff
dependency: com.apple.NVDAResman(6.3.6)@0x96e000
dependency: com.apple.iokit.IONDRVSupport(2.2.1)@0x961000
dependency: com.apple.iokit.IOPCIFamily(2.6.5)@0x928000
dependency: com.apple.iokit.IOGraphicsFamily(2.2.1)@0x93f000
BSD process name corresponding to current thread: WindowServer
Mac OS version:
10K549
Kernel version:
Darwin Kernel Version 10.8.0: Tue Jun 7 16:33:36 PDT 2011; root:xnu-1504.15.3~1/RELEASE_I386
System model name: iMac6,1 (Mac-F4218FC8)
System uptime in nanoseconds: 3354250716618
unloaded kexts:
com.apple.driver.AirPortBrcm43xx 423.91.27 (addr 0xee0000, size 0x1900544) - last unloaded 112836841708
loaded kexts:
com.symantec.kext.SymAPComm 11.1.2f17
com.symantec.kext.ips 3.2f8
com.symantec.kext.internetSecurity 1.3.2f5
com.apple.driver.AppleHWSensor 1.9.3d0 - last loaded 49585971381
com.apple.filesystems.autofs 2.1.0
com.apple.driver.AppleHDA 2.0.5f14
com.apple.driver.AudioAUUC 1.57
com.apple.driver.AppleUpstreamUserClient 3.5.7
com.apple.driver.AppleMCCSControl 1.0.20
com.apple.driver.AppleIntelMeromProfile 19
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.AudioIPCDriver 1.1.6
com.apple.driver.ACPI_SMC_PlatformPlugin 4.7.0a1
com.apple.driver.AppleLPC 1.5.1
com.apple.driver.AppleBacklight 170.0.46
com.apple.GeForce 6.3.6
com.apple.driver.AppleIRController 303.8
com.apple.driver.Oxford_Semi 2.6.1
com.apple.iokit.SCSITaskUserClient 2.6.8
com.apple.iokit.AppleYukon2 3.2.1b1
com.apple.iokit.IOAHCIBlockStorage 1.6.4
com.apple.BootCache 31.1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
com.apple.driver.AirPortBrcm43224 428.42.4
com.apple.driver.AppleUSBHub 4.2.4
com.apple.driver.AppleAHCIPort 2.1.7
com.apple.driver.AppleIntelPIIXATA 2.5.1
com.apple.driver.AppleFWOHCI 4.7.3
com.apple.driver.AppleUSBEHCI 4.2.4
com.apple.driver.AppleUSBUHCI 4.2.0
com.apple.driver.AppleEFINVRAM 1.4.0
com.apple.driver.AppleRTC 1.3.1
com.apple.driver.AppleHPET 1.5
com.apple.driver.AppleACPIButtons 1.3.6
com.apple.driver.AppleSMBIOS 1.7
com.apple.driver.AppleACPIEC 1.3.6
com.apple.driver.AppleAPIC 1.4
com.apple.driver.AppleIntelCPUPowerManagementClient 142.6.0
com.apple.security.sandbox 1
com.apple.security.quarantine 0
com.apple.nke.applicationfirewall 2.1.14
com.apple.driver.AppleIntelCPUPowerManagement 142.6.0
com.apple.driver.DspFuncLib 2.0.5f14
com.apple.driver.AppleProfileReadCounterAction 17
com.apple.driver.AppleProfileTimestampAction 10
com.apple.driver.AppleProfileThreadInfoAction 14
com.apple.driver.AppleProfileRegisterStateAction 10
com.apple.driver.AppleProfileKEventAction 10
com.apple.driver.AppleProfileCallstackAction 20
com.apple.driver.AppleHDAController 2.0.5f14
com.apple.iokit.IOHDAFamily 2.0.5f14
com.apple.iokit.IOFireWireIP 2.0.3
com.apple.iokit.IOSurface 74.2
com.apple.iokit.IOBluetoothSerialManager 2.4.5f3
com.apple.iokit.IOSerialFamily 10.0.3
com.apple.iokit.IOAudioFamily 1.8.3fc2
com.apple.kext.OSvKernDSPLib 1.3
com.apple.iokit.AppleProfileFamily 41
com.apple.driver.AppleSMC 3.1.0d5
com.apple.driver.IOPlatformPluginFamily 4.7.0a1
com.apple.driver.AppleBacklightExpert 1.0.1
com.apple.nvidia.nv40hal 6.3.6
com.apple.NVDAResman 6.3.6
com.apple.iokit.IONDRVSupport 2.2.1
com.apple.iokit.IOGraphicsFamily 2.2.1
com.apple.driver.CSRUSBBluetoothHCIController 2.4.5f3
com.apple.driver.AppleUSBBluetoothHCIController 2.4.5f3
com.apple.iokit.IOBluetoothFamily 2.4.5f3
com.apple.iokit.IOSCSIBlockCommandsDevice 2.6.8
com.apple.iokit.IOUSBHIDDriver 4.2.0
com.apple.driver.AppleUSBMergeNub 4.2.4
com.apple.driver.AppleUSBComposite 3.9.0
com.apple.iokit.IOFireWireSerialBusProtocolTransport 2.1.0
com.apple.iokit.IOFireWireSBP2 4.0.6
com.apple.iokit.IOSCSIMultimediaCommandsDevice 2.6.8
com.apple.iokit.IOBDStorageFamily 1.6
com.apple.iokit.IODVDStorageFamily 1.6
com.apple.iokit.IOCDStorageFamily 1.6.1
com.apple.driver.XsanFilter 402.1
com.apple.iokit.IOATAPIProtocolTransport 2.5.1
com.apple.iokit.IOSCSIArchitectureModelFamily 2.6.8
com.apple.iokit.IO80211Family 320.1
com.apple.iokit.IONetworkingFamily 1.10
com.apple.iokit.IOUSBUserClient 4.2.4
com.apple.iokit.IOAHCIFamily 2.0.6
com.apple.iokit.IOATAFamily 2.5.1
com.apple.iokit.IOFireWireFamily 4.2.6
com.apple.iokit.IOUSBFamily 4.2.4
com.apple.driver.AppleEFIRuntime 1.4.0
com.apple.iokit.IOHIDFamily 1.6.6
com.apple.iokit.IOSMBusFamily 1.1
com.apple.kext.AppleMatch 1.0.0d1
com.apple.security.TMSafetyNet 6
com.apple.driver.DiskImages 289.1
com.apple.iokit.IOStorageFamily 1.6.3
com.apple.driver.AppleACPIPlatform 1.3.6
com.apple.iokit.IOPCIFamily 2.6.5
com.apple.iokit.IOACPIFamily 1.3.0
System Profile:
Model: iMac6,1, BootROM IM61.0093.B07, 2 processors, Intel Core 2 Duo, 2.16 GHz, 2 GB, SMC 1.10f3
Graphics: NVIDIA GeForce 7600 GT, NVIDIA GeForce 7600 GT, PCIe, 256 MB
Memory Module: global_name
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x87), Broadcom BCM43xx 1.0 (5.10.131.42.4)
Bluetooth: Version 2.4.5f3, 2 service, 19 devices, 1 incoming serial ports
Network Service: Built-in Ethernet, Ethernet, en0
Serial ATA Device: ST3750640AS Q, 698.64 GB
Parallel ATA Device: PIONEER DVD-RW DVR-K06
USB Device: Built-in iSight, 0x05ac (Apple Inc.), 0x8501, 0xfd400000 / 2
USB Device: Bluetooth USB Host Controller, 0x05ac (Apple Inc.), 0x8206, 0x7d100000 / 2
USB Device: IR Receiver, 0x05ac (Apple Inc.), 0x8240, 0x7d200000 / 3
USB Device: Hub in Apple Pro Keyboard, 0x05ac (Apple Inc.), 0x1003, 0x1d100000 / 2
USB Device: Mouse.in.a.Box Mac USB/ADB, 0x047d (Kensington), 0x1017, 0x1d110000 / 4
USB Device: Apple Pro Keyboard, 0x05ac (Apple Inc.), 0x020b, 0x1d130000 / 3
FireWire Device: My Book Device, WD, Up to 800 Mb/sec