Having problems with the running and stability of my PC. System sp[ec as below. PC hangs regulalry even before a full boot up! and I have to use reset button and start over again. This can repeat itself many times till it is pointed at the window!! Occasionally it can and has run for hours without a bleep? Sometimes when it hangs there is a constant buzzing type noise but not always AMD Phenom 9400 Quad Core 2.20Ghz 4GB DDR ram 500GB Sata (not running as) hard drive NVIDIA GEForce 7300GT Windows Vista 64bit Ultimate Motherboard ECS A770m-A With the enclosed MB software, I cannot get it to accept my OS. I have mailed ECS Tech to obtain corretc and working disk but they chose to ignore thus far after 3 days!! NOT impressed. Being disabled I have enough struggles with my life and bought this PC new only 2 weeks ago - EBAY seller. Hope someone can assist Rangie