Hey all, Hoping someone here can help. My PC has been going to various blue screens for the last week, and increasingly so. It happens mostly when gaming, which initially lead me to believe it was GPU related, but test on the card have shown me nothing. Next, I read a post about the error message, which suggested it may be RAM related, and a Windows Memory Diagnostic did actually state 'Hardware problems were detected', so I did as stated in the FAQ and removed/cleaned/reinstalled the RAM modules, and re-tested several times (Memtest) which did not find any errors. I thought it was finally fixed, until ANOTHER BSOD..... This time an apparent HD related, which I was lead to believe was the case due to strange clicking sounds when the PC boots. However, my HD manufacturer's diagnostic and windows check disk found no errors/bad sectors, and my PC continues to blue screen. All but a system format, I am out of options. I installed some new software/hardware within the last 2 weeks (which I have now uninstalled) Lavasoft Adaware TrendMicro Housecall TW Link Wireless USB dongle My system is as follows: CPU- Intel C2D E6750 Motherboard- Gigabyte GA-N650i-SLI RAM- 2GB OCZ / 2GB GEIL (PC6400) HDD- Western Digital WD Caviar SE (WD5000AAJS) GPU- Nvidia 8800 GTS 512mb PSU- ATX built in 650watt OS- Windows Vista Home P-32bit.