I have an sis 7018 board in my AMD XP PC. I use standard cheap speakers and this has worked for years. I began actively using the WinMediaPlayer and noticed the sound quality is like a bass speaker is ripped. I swapped speakers with a known good set, same bass fuzz. Headphones same, plugged the sis 7018 output into my phono input of my stereo and it's a little better but very heavy bass. All setting are at default (this has worked for years). Do these audio boards fail like this? I updated the driver a few months ago. It is some change in the last 2-3 days and I generally don't play with setting if something works. If this is a hardware failure, can you suggest a good replacement vendor? Thanks.