Q: Kernel panics and Finder crashes

I'm having kernel panics and Finder crashes. I had a few last week, and starting in Safe Boot and resetting the PRAM seemed to work, but now I'm having them again today. I don't get the kernel panic screen; instead, my screen just goes black. The monitor light is on, and the CPU light is on, but I have to force a shut down by holding the power button and then restarting.

I restarted in Safe Boot this morning, but that only seemed to work for a couple of hours. I've also noticed that when my computer restarts, the Finder is crashing and redrawing itself several times. Below is the text of my last kernel panic. I can also post the text of the last Finder crash if that will help. I'm thinking the problem is with the graphics card, but I'm not really geeky enough to interpret the log myself. Any help is really appreciated!

Mon Sep  2 12:34:17 2013

panic(cpu 3 caller 0x80c1fc97): NVRM[0/8:0:0]: Read Error 0x00001084: CFG 0x039310de 0x00100000 0x00000000, BAR0 0xf1000000 0x81045000 0x04b300a2, D0, P0/1

Backtrace (CPU 3), Frame : Return Address (4 potential args on stack)

0x724139d8 : 0x21b837 (0x5dd7fc 0x72413a0c 0x223ce1 0x0)

0x72413a28 : 0x80c1fc97 (0x80e3522c 0x80ea5840 0x80e43f88 0x0)

0x72413ac8 : 0x80d3a5db (0xb024004 0xa4fc004 0x1084 0x80bbfd97)

0x72413b18 : 0x80ee98f4 (0xa4fc004 0x1084 0x6400 0xbb04004)

0x72413b38 : 0x80d5923f (0xa4fc004 0xb8f0604 0x0 0x0)

0x72413b78 : 0x80c28e2b (0xa4fc004 0xa4ae004 0x0 0x0)

0x72413c18 : 0x80c2550a (0x0 0x9 0x0 0x0)

0x72413dc8 : 0x80c273d9 (0x0 0x600d600d 0x702a 0x72413df8)

0x72413e98 : 0x80bbb582 (0xc1d00011 0xaa910001 0x20802040 0x72413ee0)

0x72413ef8 : 0x7ff55bd3 (0xa9bbc00 0x72413f2c 0x0 0x7)

0x72413f38 : 0x7ff543bf (0xbd8fe00 0x9e64b00 0xafeeb20 0x863ea0)

0x72413f58 : 0x7ff545ce (0xbd8fe00 0x7ff57a14 0x72413f78 0x2a45c9)

0x72413f78 : 0x230235 (0xbd8fe00 0x0 0x0 0x0)

0x72413fc8 : 0x2a179c (0x863ea0 0x0 0x10 0xaab9404)

      Kernel Extensions in backtrace (with dependencies):

         com.apple.driver.AppleHWSensor(1.9.3d0)@0x7ff53000->0x7ff57fff

         com.apple.nvidia.nv40hal(6.3.6)@0x80ea7000->0x81044fff

            dependency: com.apple.NVDAResman(6.3.6)@0x80bb9000

         com.apple.NVDAResman(6.3.6)@0x80bb9000->0x80ea6fff

            dependency: com.apple.iokit.IOPCIFamily(2.6.5)@0x7881a000

            dependency: com.apple.iokit.IONDRVSupport(2.2.1)@0x8017b000

            dependency: com.apple.iokit.IOGraphicsFamily(2.2.1)@0x80009000

BSD process name corresponding to current thread: kernel_task

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: MacPro1,1 (Mac-F4208DC8)

System uptime in nanoseconds: 6894195014459

unloaded kexts:

com.apple.filesystems.msdosfs    1.6.3 (addr 0x7fdcd000, size 0x53248) - last unloaded 335163953240

loaded kexts:

com.bresink.driver.BRESINKx86Monitoring    9.0 - last loaded 6501783001801

com.apple.filesystems.smbfs    1.6.7

com.apple.driver.AppleHWSensor    1.9.3d0

com.apple.filesystems.autofs    2.1.0

com.apple.driver.AudioAUUC    1.57

com.apple.driver.AppleUpstreamUserClient    3.5.7

com.apple.driver.AppleMCCSControl    1.0.20

com.apple.Dont_Steal_Mac_OS_X    7.0.0

com.apple.GeForce    6.3.6

com.apple.driver.AudioIPCDriver    1.1.6

com.apple.driver.AppleHDA    2.0.5f14

com.apple.driver.AppleIntel8254XEthernet    2.1.3b1

com.apple.driver.AppleUSBDisplays    289

com.apple.driver.AppleIntelMeromProfile    19

com.apple.driver.AppleMCEDriver    1.1.9

com.apple.driver.ACPI_SMC_PlatformPlugin    4.7.0a1

com.apple.driver.AppleLPC    1.5.1

com.apple.iokit.SCSITaskUserClient    2.6.8

com.apple.BootCache    31.1

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib    1.0.0d1

com.apple.iokit.IOAHCIBlockStorage    1.6.4

com.apple.driver.AppleFWOHCI    4.7.3

com.apple.driver.AppleUSBHub    4.2.4

com.apple.driver.AppleAHCIPort    2.1.7

com.apple.driver.AppleUSBEHCI    4.2.4

com.apple.driver.AppleEFINVRAM    1.4.0

com.apple.driver.AppleUSBUHCI    4.2.0

com.apple.driver.AppleIntelPIIXATA    2.5.1

com.apple.driver.AppleACPIButtons    1.3.6

com.apple.driver.AppleRTC    1.3.1

com.apple.driver.AppleHPET    1.5

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.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.iokit.IOSurface    74.2

com.apple.iokit.IOBluetoothSerialManager    2.4.5f3

com.apple.iokit.IOSerialFamily    10.0.3

com.apple.driver.DspFuncLib    2.0.5f14

com.apple.iokit.IOAudioFamily    1.8.3fc2

com.apple.kext.OSvKernDSPLib    1.3

com.apple.nvidia.nv40hal    6.3.6

com.apple.NVDAResman    6.3.6

com.apple.iokit.IONDRVSupport    2.2.1

com.apple.iokit.IOFireWireIP    2.0.3

com.apple.iokit.IONetworkingFamily    1.10

com.apple.iokit.AppleProfileFamily    41

com.apple.driver.AppleHDAController    2.0.5f14

com.apple.iokit.IOGraphicsFamily    2.2.1

com.apple.iokit.IOHDAFamily    2.0.5f14

com.apple.driver.AppleSMC    3.1.0d5

com.apple.driver.IOPlatformPluginFamily    4.7.0a1

com.apple.driver.AppleUSBHIDMouse    162

com.apple.driver.AppleHIDMouse    162

com.apple.iokit.IOUSBHIDDriver    4.2.0

com.apple.driver.AppleUSBMergeNub    4.2.4

com.apple.driver.AppleUSBComposite    3.9.0

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.IOFireWireFamily    4.2.6

com.apple.iokit.IOUSBUserClient    4.2.4

com.apple.iokit.IOAHCIFamily    2.0.6

com.apple.iokit.IOUSBFamily    4.2.4

com.apple.iokit.IOATAFamily    2.5.1

com.apple.driver.AppleEFIRuntime    1.4.0

com.apple.iokit.IOHIDFamily    1.6.6

com.apple.iokit.IOSMBusFamily    1.1

com.apple.security.TMSafetyNet    6

com.apple.kext.AppleMatch    1.0.0d1

com.apple.driver.DiskImages    289

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