It seems my computer has trouble recognizing CDs being present in the drives. Let me elaborate. Example 1- the burner drive: I try to burn a CD and put a CDR in but the program keeps telling me to insert a CD when there is already one in. Example 2- the main DVD drive: I installed Myst III and the program successfully opens but when I try to start a game it tells me to insert disk 1, even when disk 1 is in. If you have any idea what might be wrong, I'd really appreciate help.