[ebb]

I had this problem until I did the following (and it is in other threads). First, in case you haven't yet. you need to be on radio 3.35 and a corresponding rom (word of note: the newest radio, 3.37 has other bluetooth issues, so if you're on that, go back to 3.35). Second, delete your pairing. Third, edit the registry setting:
HKLM\Comm\Parms\AllowSuspend and change that value from 1 to 0.

Third, re-pair your bluetooth device. Fourth, get Jetware Mobile, and load it.

After these steps, I have had the issue maybe twice in a six-week period, after having it frequently before. Good luck.