let me make several guesses ^_^
guess 1> reinstall your graphic card
guess 2> check hardware drivers, especially the one for CD-rom
guess 3> take a virus scan online
guess 4> find an expert to face it for troubleshooting.
guess 2> check hardware drivers, especially the one for CD-rom
guess 3> take a virus scan online
guess 4> find an expert to face it for troubleshooting.