I remember a macworld article about someone that had installed a mac mini in their dash of their prius. If that can be done, I think this can be done.

Sounds like you will need a replacement screen. I have had a similar thing happen with some iBooks so I would guess it would be the same solution.

I have seen this before. The computer was in need of a new lcd screen. I hope that is not the case. Try disconnecting it for a few minutes and plugging it back in, otherwise replace it.