Hi

,
You have one dump and no more information, please help us help you by following the
http://www.sevenforums.com/bsod-help-support/96879-blue-screen-death-bsod-posting-instructions.html.
Now with regards to the dump I see couple of angles.
Code:
[U][B]BugCheck 116[/B][/U], {fffffa800329b010, fffff88003c24cb0, 0, 2}
Unable to load image \SystemRoot\system32\DRIVERS\igdkmd64.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for igdkmd64.sys
*** ERROR: Module load completed but symbols could not be loaded for igdkmd64.sys
[COLOR=Red][U][B]Probably caused by : igdkmd64.sys[/B][/U][/COLOR] ( igdkmd64+23cb0 )
Attempt to reset the display driver and recover from timeout failed.
These are all stop 0x116 VIDEO_TDR_FAILURE conditions.
It's not a true crash, in the sense that the bluescreen was initiated only because the combination of video driver and video hardware was being unresponsive, and not because of any synchronous processing exception.
Since Vista, the "Timeout Detection and Recovery" (TDR) components of the OS video subsystem have been capable of doing some truly impressive things to try to recover from issues which would have caused earlier OSs like XP to crash. As a last resort, the TDR subsystem sends the video driver a "please restart yourself now!" command and waits a few seconds. If there's no response, the OS concludes that the video driver/hardware combo has truly collapsed in a heap, and it fires off that stop 0x116 BSOD.
If playing with video driver versions hasn't helped, make sure the box is not overheating. Try removing a side panel and aiming a big mains fan straight at the motherboard and GPU. Run it like that for a few hours or days - long enough to ascertain whether cooler temperatures make a difference. If so, it might be as simple as dust buildup and subsequently inadequate cooling.
The display driver is very very old;
Code:
lmvm igdkmd64
fffff880`03c01000 fffff880`041d4500 igdkmd64 T (no symbols)
Loaded symbol image file: igdkmd64.sys
Image path: \SystemRoot\system32\DRIVERS\igdkmd64.sys
Image name: igdkmd64.sys
Timestamp: [COLOR=Red][U][B]Wed May 06 21:22:19 2009[/B][/U][/COLOR]
Please Update using this online Utility :: Intel® Driver Update Utility ::
- Download Speccy and post a Screenshot of the summary window, one at idle and another while putting load on the PC using Prime95.
Your BIOS is woefully out-dated! Pre Windows Seven.
Code:
BiosVersion = 1.0.3
BiosReleaseDate = [COLOR=Red][U][B]10/24/2008[/B][/U][/COLOR]
Please update your BIOS.
Warning
Flashing the BIOS is a risky procedure. If you are uncomfortable
performing it yourself have a technician perform it.
Regardless, flashingis at your own risk.
View attachment 287001
You are using Windows Seven x64 when Dell doesn't have official driver support
for the 64Bit version.
Other than that your still using RTM, Windows 7 Kernel
Version 7600.
Update to Service Pack 1.
Post back with the results!