No clue about your print screen problem, but about the cdrom drive...
Check your event logs under the admin tools in the control panel to check for errors.
Here's a problem I had that came from the game. I have 2 plextor drives. One is a bit older, a CDRW / DVD rom drive, the other is a newer DVDRW / DVD rom drive.
After installing SH4, the older drive suddenly started giving me a lot of problems reading disks, in fact, the sh4 disk took a very long time to "check" and load the game, sometimes not at all.
Then newer drive gave me no problems.
I checked my event logs and saw a ton of "cdrom" errors.
To make it short, I went to the plextor site and downloaded a newer firmware and flashed the old drive. The errors are gone and it's reading disks properly.
I think my problem was Securom related, but the firmware update fixed it.
There's something for you to chew on.