I am at the end of my rope and hoping someone can provide some help. I have a Aptiva PC (AMD K6 400mhz Processor - 192MB) and am getting nasty noise and pops on SOME .wav files. I started on Win98 and ended up on Win 2k with the same symptoms. The onboard sound card is an ESS Solo. It doesn't appear to be a driver problem, as I installed a SB 16 (ISA) sound card and ended up with the exact same problems. Some sounds are fine (the Utopia set) others (like Chord.wav) are LOUD and Crackle and pop. I've tried running dxdiag and messages say everything is fine, yet I still get nasty noises.... I can't say for sure, but the first time this happened was installing a kid's game and I think it took me to a new release of Directx (5.0??) Anyone have any ideas???