Take a look here, using this you might get some clues at to why you are getting crashes.
Heres what i have so far. Looks like I've been having errors almost every time I use my pc. From the 21-30 it looks like my pc had a video hardware error everytime i used my pc. I've looked at all the errors and they seem all the same to me. Heres one I copy and pasted.
Description
A problem with your video hardware caused Windows to stop working correctly.
Problem signature
Problem Event Name: LiveKernelEvent
OS Version: 6.1.7601.2.1.0.256.48
Locale ID: 1033
Files that help describe the problem
WD-20120124-0253.dmp
sysdata.xml
WERInternalMetadata.xml
View a temporary copy of these files
Warning: If a virus or other security threat caused the problem, opening a copy of the files could harm your computer.
Extra information about the problem
BCCode: 117
BCP1: FFFFFA8005764010
BCP2: FFFFF880045A18C8
BCP3: 0000000000000000
BCP4: 0000000000000000
OS Version: 6_1_7601
Service Pack: 1_0
Product: 256_1