Hey all: I posted about this earlier and have seen many threads on it.
My problem began with install of WIndows 7 64bit. I had no sound whatsoever after install. I have ASUS M2n e SLI mobo with C media CM6501 USB integrated sound card.
I had no sound but could see the sound bar moving up and down when playing music. I tried installing the CM6501 driver
and it installed but still no sound after restart. I tried opening the CM6501 icon in the task bar, but it would freeze my pc and I had to restart.
Install the driver for vista for CM6501 version 18.104.22.1683. Restart your PC. When you restart, click on the CM6501 icon in the task bar. IT WILL FREEZE your pc for a while. I clicked it, then left my pc for 10 minutes, when I came back, the utility had opened. I changed the speakers from 2 to 6 or 8 channel and all the sudden had sound. Close it and enjoy. For some reason, it does not work with 2 or 4 selected. ANd the utility takes forever to open.
Thats it. Although, my subwoofer does not work with windows media, I can still play music. I did find that sound comes through my subwoofer in youtube, so it must be WMP issue. I think it will all get fixed when more drivers
come out, but for the time being, its better than being without sound.
Hope this helps!!