[donmr123]

I'm thinking it might have something to do with installing other 3rd party stuff such as another core audio driver for some other interface orther than digi. at one point I had an M-Audio Duo driver in there and i'm never quite sure how to properly uninstall somethiong in OSX without an uninstall option in the installer. Digi says you must use the Uninstall option for any previous versions of their core audio drivers before installing the new ones. i did this but it didn't cure the problem.
Perhaps some other USB device, printer? mouse, bluetooth?
Perhaps Palm Desktop software? iSync? whoknows???
Don