Sound sometimes dies.. Have to restart to resolve..?

As the title states, I seem to intermittently lose sound all together. The machine will run fine for 3-6 days, and then it will suddenly lose sound. Like someone hit the mute switch, but no one did. I have searched for an answer within all the running programs.. Even killing all the running programs and going back to just the basic desktop, but still, no good. This same phenomenon used to happen back in my Vista days as well, with this same PC.. Then, when I installed Win 7, the problem went away, that is until about 2 weeks ago. It has happened 3-4 times over the last 2 weeks.

Sound card is an M-Audio Delta 2496. They do not have a Specific Windows 7 driver, and I doubt they ever will. Took a year for them to get a Vista Driver..

Hi, did you try to install the driver in compatibility mode, for Vista?

Nope.. In order to install the driver, I had to copy the folder from an older Vista 64 install directly from where the driver installed to. Then, in the add hardware wizard, I had to pnt the wizard to install from that folder. It found it, and installed the driver. I works flawless, as I said, for a while, even a bit better then it used to work in Vista. It only recently started misbehaving again..

Hi, try uninstalling it again, and then reinstalling it, and if windows doesn't fine the driver then do the compatibilty install again, and tell it to run as administrator this time and see if there is any change.