If this is a laptop go to manufactures website and check for lastest Vista drivers for your Audio Device. For example, I have Dell E1705's and these drivers have been updated 3 times since Dec. Manufactures are catching up to Vista so be patient. Many times a call to tech will produce a beta driver. Make sure you back up everything before using betas or make a restore point. Be sure to download 32 or 64 bit, they are different. If you do not find it this way, get back to me, I have some work arounds. Let me know which brand of computer you are using.