GarageBand: Error while trying to synchronize Audio and MIDI.

I recently purchased Midi Guitar 2 from JamOrigin.com. It adds literally 10s of thousands of super sounds to Garageband's software instrument & audio tracks, even while playing real time! When the error message occasionally comes up - ' Error while trying to synchronize Audio and MIDI ' - here is a simple solution. Go to your (Mac) finder, open the Audio MIDI Setup program. Select the appropriate output you are using. Change the Sample Rate to 48.0 kHz (this is what the GB program suggests). Now, just wait 15 to 45 seconds. the AMS program automatically drops the rate back down to 44.1 kHz, & now the error is gone in Garageband!!!