Screenblaster acid 4.0 and sound forge 7.0 won't recognize cd drive.

[ingeborgdot]

In and audio broadcasting machine we have screenblaster acid and sound forge that have been working for the last couple of years. A couple of weeks ago when we went to record it says no devices. What is causing the conflict? The player will play cds and we also tried a new one but it still does the same thing. It is on an xp pro machine. Can anyone figure this one out?