"System Extension Cannot be Used" following upgrade to 3846

I upgraded to Snow Leopard on my MacBook Pro last week. My Parallels 4, build 3844, worked fine following the upgrade to SL. When I recently opened Parallels, I received a notice there was a new build 3846. I allowed Parallels to update to the new build. Now, while Parallels seems to operate properly so far, I occasionally get a window warning coming up quickly (then disappears) saying something like "System Extension Cannot be Used. The System extension installed incorrectly and needs to be reinstalled or contact vendor." The warning references a file named "MacIntosh/System/Library/Extensions/CDSDAudioCaptureSupport.kext."

How can I correct this so I no longer get the warning windows?