This may or may not be anyone in particular's problem, but I'll toss this out just in case...
I have noticed that there is a distinct window of time where the status between Gobbler (client application) and the Gobbler widget within Sonar can get out of sync. If you turn on Gobbler within Sonar before Gobbler (client application) has
completely started and synchronized itself, you will get error messages from the Sonar widget.
Make sure that the Gobbler client isn't still 'beaming from outerspace' and is fully quiescent before you turn it on from within Sonar.
TIA