Kernel Panic - explain what this means?

[kpritcha13]

I've had 3 kernel panics in the past 3 days. 2 back to back on a restart.
Here is one of the reports. Could someone explain what is likely to be the problem? Is my graphics card failing?

The first time I had a 2nd monitor attached to my laptop the next 2 nothing was attached. - This report is from the last one when nothing was plugged into my laptop

I have a 2006 2.2 Ghz Intel Core 2 Duo Macbook Pro running 10.5.8
Thanks!

Interval Since Last Panic Report: 11 sec
Panics Since Last Report: 1
Anonymous UUID: F10E9071-D225-49CA-BE16-CE809852F4CA

Wed Nov 11 15:41:44 2009
panic(cpu 1 caller 0x00B5B6A4): NVRM[0]: Read Error 0x00020400: BAR0 0xd2000000 0x6ee51000 0x084700a2 D0 P2/4
Backtrace (CPU 1), Frame : Return Address (4 potential args on stack)
0x5b22f948 : 0x12b4c6 (0x45f91c 0x5b22f97c 0x13355c 0x0)
0x5b22f998 : 0xb5b6a4 (0xd8be80 0xd8be80 0xd506d4 0x0)
0x5b22f9f8 : 0xe14df0 (0x7554404 0x792c804 0x20400 0xafa3a7)
0x5b22fa38 : 0xe3886f (0x792c804 0x20400 0x0 0x0)
0x5b22fa58 : 0xc2e6da (0x792c804 0x46bc9098 0x0 0x5b22fa7c)
0x5b22fa88 : 0xc1cc99 (0x792c804 0x46bc9004 0x1 0x5b22facc)
0x5b22fae8 : 0xcbe328 (0x792c804 0x782b804 0x935891c 0x0)
0x5b22fb98 : 0xcbd81b (0x792c804 0x7a6c004 0x0 0x0)
0x5b22fc18 : 0xe19d74 (0x792c804 0x7a6c004 0xd 0x2)
0x5b22fd38 : 0xe2f2cb (0x792c804 0x75c0004 0x0 0x0)
0x5b22fe88 : 0xcb1495 (0x792c804 0x782b804 0x0 0x0)
0x5b22fed8 : 0xb5bb60 (0x792c804 0x782b804 0x0 0x0)
0x5b22ff18 : 0x426bfb (0x0 0x7ae1180 0x1 0x19fed4)
0x5b22ff68 : 0x425d58 (0x7ae1180 0x0 0x1 0x0)
0x5b22ff98 : 0x425a3a (0x717f3c0 0x5b22ffdc 0x5b22ffc8 0x1aa272)
0x5b22ffc8 : 0x1a14fc (0x717f3c0 0x0 0x1a40b5 0x8165880)
Backtrace terminated-invalid frame pointer 0
Kernel loadable modules in backtrace (with dependencies):
com.apple.nvidia.nv50hal(5.4.8)@0xda1000->0xff4fff
dependency: com.apple.NVDAResman(5.4.8)@0xb42000
com.apple.NVDAResman(5.4.8)@0xb42000->0xda0fff
dependency: com.apple.iokit.IONDRVSupport(1.7.3)@0xb34000
dependency: com.apple.iokit.IOPCIFamily(2.6)@0x5db000
dependency: com.apple.iokit.IOGraphicsFamily(1.7.3)@0xabe000

BSD process name corresponding to current thread: kernel_task

Mac OS version:
9L30

Kernel version:
Darwin Kernel Version 9.8.0: Wed Jul 15 16:55:01 PDT 2009; root:xnu-1228.15.4~1/RELEASE_I386
System model name: MacBookPro3,1 (Mac-F4238BC8)

System uptime in nanoseconds: 210109148878
unloaded kexts:
com.apple.driver.InternalModemSupport 2.4.0 - last unloaded 101806675403
loaded kexts:
xxx.qnation.PeerGuardian 1.1.9
com.apple.driver.AppleHWSensor 1.9d0 - last loaded 18288689199
com.apple.driver.InternalModemSupport 2.4.0
com.apple.filesystems.autofs 2.0.2
com.apple.iokit.IOBluetoothSerialManager 2.1.8f2
com.apple.driver.AppleHDAPlatformDriver 1.7.1a2
com.apple.driver.AppleUpstreamUserClient 2.7.5
com.apple.driver.AppleHDAHardwareConfigDriver 1.7.1a2
com.apple.driver.AppleHDA 1.7.1a2
com.apple.GeForce 5.4.8
com.apple.Dont_Steal_Mac_OS_X 6.0.3
com.apple.driver.AppleGraphicsControl 2.8.15
com.apple.nvidia.nv50hal 5.4.8
com.apple.driver.AirPort.Atheros 320.16.2
com.apple.driver.AppleHDAController 1.7.1a2
com.apple.driver.SMCMotionSensor 2.1.1d2
com.apple.driver.AudioIPCDriver 1.0.6
com.apple.driver.AppleIRController 113
com.apple.kext.AppleSMCLMU 1.4.5d1
com.apple.driver.ACPI_SMC_PlatformPlugin 3.4.0a17
com.apple.driver.AppleLPC 1.3.1
com.apple.driver.AppleBacklight 1.6.0
com.apple.driver.AppleTyMCEDriver 1.0.0d28
com.apple.iokit.IOFireWireIP 1.7.7
com.apple.driver.CSRUSBBluetoothHCIController 2.1.8f2
com.apple.driver.AppleUSBTrackpad 1.7.4f1
com.apple.driver.AppleUSBTCKeyEventDriver 1.7.4f1
com.apple.driver.AppleUSBTCKeyboard 1.7.4f1
com.apple.driver.CSRHIDTransitionDriver 2.1.8f2
com.apple.driver.AppleUSBMergeNub 3.4.6
com.apple.iokit.IOSCSIMultimediaCommandsDevice 2.1.1
com.apple.iokit.SCSITaskUserClient 2.1.1
com.apple.driver.XsanFilter 2.7.91
com.apple.iokit.IOATAPIProtocolTransport 1.5.3
com.apple.iokit.IOAHCIBlockStorage 1.2.2
com.apple.driver.AppleFileSystemDriver 1.1.0
com.apple.driver.AppleUSBHub 3.4.9
com.apple.iokit.IOUSBUserClient 3.4.9
com.apple.driver.AppleAHCIPort 1.7.0
com.apple.driver.AppleIntelPIIXATA 2.0.1
com.apple.driver.AppleUSBEHCI 3.4.6
com.apple.driver.AppleUSBUHCI 3.3.5
com.apple.iokit.AppleYukon2 3.1.13b2
com.apple.driver.AppleFWOHCI 3.9.7
com.apple.driver.AppleEFINVRAM 1.2.0
com.apple.driver.AppleSmartBatteryManager 158.10.5
com.apple.driver.AppleRTC 1.2.3
com.apple.driver.AppleHPET 1.4
com.apple.driver.AppleACPIPCI 1.2.5
com.apple.driver.AppleACPIButtons 1.2.5
com.apple.driver.AppleSMBIOS 1.4
com.apple.driver.AppleACPIEC 1.2.5
com.apple.driver.AppleAPIC 1.4
com.apple.security.seatbelt 107.12
com.apple.nke.applicationfirewall 1.6.77
com.apple.security.TMSafetyNet 3
com.apple.driver.AppleIntelCPUPowerManagement 76.2.0
com.apple.driver.DiskImages 199
com.apple.BootCache 30.4
com.apple.iokit.IOSerialFamily 9.4
com.apple.driver.DspFuncLib 1.7.1a2
com.apple.NVDAResman 5.4.8
com.apple.iokit.IO80211Family 216.1
com.apple.iokit.IOHDAFamily 1.7.1a2
com.apple.iokit.IOAudioFamily 1.6.9fc5
com.apple.kext.OSvKernDSPLib 1.1
com.apple.driver.IOPlatformPluginFamily 3.4.0a17
com.apple.driver.AppleSMC 2.3.1d1
com.apple.iokit.IONDRVSupport 1.7.3
com.apple.iokit.IOGraphicsFamily 1.7.3
com.apple.driver.AppleUSBBluetoothHCIController 2.1.8f2
com.apple.iokit.IOBluetoothFamily 2.1.8f2
com.apple.iokit.IOUSBHIDDriver 3.4.6
com.apple.driver.AppleUSBComposite 3.2.0
com.apple.iokit.IOSCSIBlockCommandsDevice 2.1.1
com.apple.iokit.IOBDStorageFamily 1.5
com.apple.iokit.IODVDStorageFamily 1.5
com.apple.iokit.IOCDStorageFamily 1.5
com.apple.iokit.IOSCSIArchitectureModelFamily 2.1.1
com.apple.iokit.IOAHCIFamily 1.5.0
com.apple.iokit.IOATAFamily 2.0.1
com.apple.iokit.IOUSBFamily 3.4.9
com.apple.iokit.IONetworkingFamily 1.6.1
com.apple.iokit.IOFireWireFamily 3.4.9
com.apple.driver.AppleEFIRuntime 1.2.0
com.apple.iokit.IOSMBusFamily 1.1
com.apple.iokit.IOStorageFamily 1.5.6
com.apple.iokit.IOHIDFamily 1.5.5
com.apple.driver.AppleACPIPlatform 1.2.5
com.apple.iokit.IOACPIFamily 1.2.0
com.apple.iokit.IOPCIFamily 2.6

[J the Ninja]

Looks like the 8600M issue. Book an appointment with the Genius bar. The repair is free. Oh, and you have a 2007 model machine, not a 2006.

[pcs are junk]

its a hardware problem, it is your ram malfunctioning or something. just make an appointed with genius bar and go to the apple store. they will fix it. oh, but if ur warranty is out, then ur gonna have to pay.