Hello, welcome to SF!
The dump blames your ATI graphics
drivers, but they appear to be up-to-date. I only see evidence of one BSOD, though; have there been more than that? I see you reinstalled Windows today, was it because of BSODs?
If so, I have to suspect a hardware problem. It's hard to determine what part is failing, from one dump, but the info I have points to a bad graphics card. Do you have another one you can use? Perhaps you can borrow one from a friend.
Testing the RAM is a good idea too. See this guide:
RAM - Test with Memtest86+ ...Summary of the dump: Code:
Built by: 7600.16385.amd64fre.win7_rtm.090713-1255
Debug session time: Mon Dec 20 12:54:18.446 2010 (UTC - 5:00)
System Uptime: 0 days 1:12:31.412
Probably caused by : atikmdag.sys ( atikmdag+90817 )
DEFAULT_BUCKET_ID: VISTA_DRIVER_FAULT
BUGCHECK_STR: 0x3B
PROCESS_NAME: dwm.exe
FAILURE_BUCKET_ID: X64_0x3B_atikmdag+90817
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