content: This happens whenever I have monitor #1 disconnected after a restart, Win 7 on a couple GTX 260's. Also happens only using 1 card. This seems like a common issue people are having, and with my small amount of embedded programming experience I'd say a stupid easy fix. If you're seeing POST or splash screen, and when it comes time to boot winblows it must be trying to default to a display that simply isn't there? I've been out of the PC repair game for about 6 years, but can't we disable external monitor output on a laptop (if equipped) to fix the issue?