Windows Error

Sometime when I start or doing other things with Avast 5.0.447 I get an error that my driver for my video card had stopped and was restarted. At this time the screen goes black for a second. Error info follows. I have an NVIDIA GeForce GTX 295 driver version 196.21. Running Windows 7 X 64

3/4/2010 9:18 PM Windows Error Reporting Fault bucket , type 0 Event Name: LiveKernelEvent Response: Not available Cab Id: 0 Problem signature: P1: P2: P3: P4: P5: P6: P7: P8: P9: P10: Attached files: C:\Windows\LiveKernelReports\WATCHDOG\WD-20100304-1618.dmp C:\Windows\Temp\WER-17436013-0.sysdata.xml C:\Windows\Temp\WERE66.tmp.WERInternalMetadata.xml These files may be available here: C:\ProgramData\Microsoft\Windows\WER\ReportQueue\Kernel_0_0_cab_0e260e66 Analysis symbol: Rechecking for solution: 0 Report Id: 6feb6ac0-27d3-11df-8c83-0026189e970b Report Status: 4