New Build - all done ane running. Mobo is the new Abit A9 QuadGT Now sometimes the vga out signal would not go beyond DOS. So I would see the mobo boot screen - then no signal would come on the monitor while Vista continued to load. Sometimes it would display windows, sometimes not - depending on how I was playing with peripherals etc. Have now craked whats doing this (but not why). It would do this if I say have too many USB drives active. My modem and mouse are USB and these are fine. But if I try to boot with a USB key in the drive or my external hard disk turned on, the display wont go beyond DOS Once windows is loaded I can plug in what I like Have tried installing all the latest Mobo software and the Bios is up to date. Are there such things as USB drivers and where do I find them? (my mobos download page is at http://tinyurl.com/2ekl92) Any ideas?