My PC is about 5 years old... the manuals are pretty much long gone!! I called MESH, who built the PC, and their only advice was to reformat the Hard Drive - didn't even mention the BIOS...
The only thing I haven't tried is completely deleting all possible "Sound" from the PC - going into the Device Manager and deleting all sound related hardware in the list, this being:
1. Audio Codecs
2. Creative Game Port
3. Creative SB Audigy 2 ZS (WDM)
4. Legacy Audio Drivers
5. Legacy Video Capture Devices
6. Media Control Devices
7. Unimodem Half-Duplex Audio Device
and then re-starting the PC... is it worth a try, even though I have updated all the drivers only a few days ago?
Thank you so much for your help so far... this is really starting to bug me - there must be some reason for the sound to be screwed!!! Darn It!!
Kat