I know this is an old thread, but I came across it while searching for the solution to this problem.  I recently built my own PC, and moved the hard drive from my old one to the new one and encountered this problem (the new one has better audio on the motherboard than the Creative Audigy I had in the old Dell). Anyway, I solved it by using Drive Cleaner Pro (http://www.drivercleaner.net/) to clear out all traces of the Creative drivers -- after that, no more errors when launching Studio.