Microsoft Media Center Headache

Hello,

I just purchased a new computer and it came with Media Center (and I know it is a legal version....not pirated).

It installed properly and I was able to use it a few times.

For some reason when I open it now, the screen remains black. I can still see my mouse pointer and can hear the "media center sounds" when I move the mouse around, but the screen stays black.

I have not adjusted any of the display settings etc...so I have no clue what happened?

Could any one shed some light on what I might be able to do?

Thanks