I have just set upped Ubuntu 9.10 OS on my laptop (znote 6224w with nvidia GeForce 9600gt VGA card).

Whenever I hang up it to ARAM, it works, but when I want to continue it, I just have a black screen plus nothing more. In this situation I ought to hold power switch for almost 5 second as well as switch off the computer and after that turn it on once more.

How can I repair this issue?