I have just recently built a new computer and am trying to use my older vga monitor with it. The monitor displayed fine while installing the os but after it finished the monitor goes right into sleep mode. I updated all my drivers for the onboard video and my video card and have switched between the two in my bios trying to make it work. So far the monitor displays up to the loading windows screen then goes straight into sleep mode. The most annoying thing is that the monitor works fine as a secondary monitor, just not a primary. Any ideas? The monitor is also plug and play.