Windows ME system. Latest chipset drivers, updates, DX etc etc.
After removing a virus, there was no sound. Sound card claimed to be working correctly, but in Sounds and Multimedia it says no playback device.
Reinstalled card - no good.
Installed new sound card - got sound. Rebooted next day - no sound. Same thing, device OK in Dev Mngr, but no playback device in Sounds and Multimedia.
Tried a third card, and a fourth. Works fine until reboot, then vanishes from Sounds and Multimedia. In each step here I also took out all multimedia properties from Windows Set Up in Add/Remove.
All virus scans done and clean. All spyware checks clean now. HiJack this report is as good as it can get. Used JV16 to get rid of detritus etc.
How can I "reset" all sound and multimedia properties to get sound to stay??

Thanks.