Sometimes when I turn my computer on and it scans for all of my devices it says that my CD-Writer is ATAPI Incompatible and asks me to "Hit F1 to resume". Once it has booted up it then doesn't read any discs properly.

However this only happens about 50% of the time so I don't have a clue what it could be. In fact I don't even know what the error message means. Could anyone give me any help?

Thanks in advance.