Sound Card Virus... Does anybody know a quick fix to correct the Sound Blaster 16's sound card to stop working all of a sudden...it will play music through it, but a file on the computer will not play, or you hear just a split second of the sound. Also, it comes up with an error message saying "Microsoft Sound Mapper is in use by another application, please close the application"...there isn't any other application running it...in Windows 98. Please reply. Thank you.