BSOD while playing a new game

Hello there. I'm brand new to the forums and from what I have read this seems like a helpful bunch.

I just recently installed Left 4 Dead. I can play it just fine for a while but then will get it either quitting to desktop or I will get the following BSOD:

Beginning dump of physical memory

STOP: 0x00000007F (0x00000000D, 0x000000000, 0x000000000, 0x000000000)

Now it was happening when I first installed the game and then i updated my video drivers and it's still happening. I am at a loss on what to do. I see other people including minidumps and I would like to know how to make one so I can give you guys more information. Thanks in advance for your help!

See if you can identify any off these possible causes for this stop error:
http://support.microsoft.com/?kbid=137539&sd=RMVP

Resolutions appear about mid-page.

I couldn't find anything on that webpage, sadly. The help page says to pay attention to first value, which mine is, 0x00000000D
And the only options they give are:
0x000000000
0x000000004
0x000000005
0x000000006
0x000000008

None of those match my value of 0x00000000D

Now I tried this out last night. I downloaded DeBugging Tools For Windows and ran it
On one of my minidumps from last night when I got the same BSOD and it said probable cause was an ATi dll, so prolly my display drivers. Now I run a Diamond video card and was running true ATi drivers. So I uninstalled them and downloaded the most updated drivers from Diamond. I got another quit to desktop last night but it was after about an hour of game time. I've never had it go that long. Now at this point, a quit to desktop sounds like a software problem but that's my guess. As far as another BSOD I'm gonna test extinsively tonight to see if I have that fixed. Any other ideas?