HI,I am new to overclocking. I have just installed a eVGA 8800 GTS 640 g80 card. My computer is a business dx2200 pentium 4 D duo core with 1.5 ddr and 1.16 TB in 3 hard drives. I just installed the card after disabling the ATI Radeon 200 pci-e card. Scrolling looks strange like a wave across the screen is that normal? I changed the ps from a 250 to a 700wt ps with plenty of fans and extra hookups. No start up diskette only cd and dvd drives. How do you flash the bios on this HP ATI based system?