No sound...

[Vanquished]

for some reason, i have no sound anymore....
When i go into the control panel to sound, it says no audio device...
but when i go into Device Manager, it doesnt say anything is corrupt...
Please help

Here is a Screen Shot of what the sound manager looks like.

-edit-

Nevermind.
I did a system restore.
Seems to work now.
I think it was the Logitech Program I installed.