BSOD While playing games

EDIT: I hope this isn't in the wrong section.

I eventually get a blue screen of death when playing games, like BF2, COD. Etc. I believe maybe also sometimes just when the computer has been idling at desktop.

Anyway, the latest one:

BAD_POOL_HEADER

Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.0.6002.2.2.0.768.3
Locale ID: 1033

Additional information about the problem:
BCCode: 19
BCP1: 00000020
BCP2: BFF5D000
BCP3: BFF5D068
BCP4: 0A0D0400
OS Version: 6_0_6002
Service Pack: 2_0
Product: 768_1

Files that help describe the problem:
C:\Windows\Minidump\Mini011711-02.dmp
C:\Users\Danni\AppData\Local\temp\WER-61573-0.sysdata.xml
C:\Users\Danni\AppData\Local\temp\WER1D20.tmp.version.txt


Specs:

Operating System: Windows Vista™ Home Premium (6.0, Build 6002) Service Pack 2 (6002.vistasp2_gdr.090803-2339)
Processor: AMD Athlon(tm) 64 X2 Dual Core Processor 5600+ (2 CPUs), ~2.8GHz
Memory: 3070MB RAM
Hard Drive: 490 GB
Video Card: NVIDIA GeForce 8800 GT

Attachment is the CPUID CPU-Z info file on my comp. (Not sure if it helps)

I would love to get this sorted so i could play games again!

 

Usually the main causes of BSOD is of hardware problems perhaps your graphics card or mother board,
sometimes software applications can also cause BSOD so if you installed anything new try uninstalling/reinstalling it or use the "last know good configuration" option in your pc.

For more info about the BSOD try this link:

http://www.astahost.com/info.php/Bsod-Error-Amp-It39s_t14853.html