I have an iMac that has Windows 7 installed as a partition. I'm having an issue with sound when Windows is running.

When I use the Mac OS, everything's fine.

When I use Parallels (newest version) to run windows programs, the sound is fine.

However, when I use Boot Camp at start up and load windows, there's no sound available. Tried using sound through the control panel and even iTunes and no help.

I'm sure it's a driver issue, but I'm not certain how to proceed.

The external speakers are Logitech, but I cannot find their model number. They are essentially low price devices.

Any assistance would be appreciated.