I just wanted to let you know how things were going with my PC. I enabled the on-board Realtek AC'97 Audio and I have audio with 4GB RAM! :D There must be some issue with the SoundBlaster Xi-Fi Music card and the under-clocked RAM in Win 7. I still can't get Windows 7 to like the RAM at full 200MHz, but I did under-clock it to 166MHz because of the lower CAS rating. I now have BIOS set to overclock the CPU (1%) and things seem to be working fine. I may try overclocking it a little more, but that is something for another day.

Thanks again for all of your help.