Hi, basically the problem is that it posts and everything, but as soon as i get to the OS system boot option - Vista or "Older version of windows (xp)" and i select one.... just a black screen. voltages are 2.1 for Mem and 1.3 for my E6600 both at stock with 4-4-4-12 timings on the RAM.... sometimes if i change a setting in the BIOS and then reboot, It hangs on the Motherboard Splash screen. Motherboard is a P5N32-E. Thanks