well thats the problem. My monitor shows "out of range" (the monitor-generated error message) during boot up until windows starts loading. After this everythin works fine.
I know my monitor doesn't suport high resolutions, but this should not be the problem.
I'm not 100% sure when this started happening, but I know I booted into linux and got all of the boot messages on my screen. But now nothing until I get into windows.
Any Idea people?