I'm having trouble finding a reliable driver for the CMI8738 sound card on my Windows 7 system. Has anyone found a driver that works well, or does anyone have a suggestion on where I might be able to download one? My sound has been off ever since I upgraded to Windows 7, and I would really appreciate any help in restoring it. If there are any specific settings or tweaks I should be aware of when installing, please let me know! Thanks!