[Waxing_Gibbous (Peter)]

I have an EQ6 Pro that has performed flawlessly for the entire two years I've had it. Never missed a beat.
It has been idle for two months but I recently took it out and gave it a run.
It was working last Saturday.
Now it's not.
Symptoms are, well, one only really - I can press any arrow I like at any speed rate and it goes nowhere. Doesn't even whine or groan.
Power connection is OK. Connector cable and contacts - ditto.
The hand controller accepts input just fine.
There is a amall rattle in the controller that wasn't there yesterday!

I'm hoping it's just the HC, but if anyone else has had a similar experience with a different cause, I'd really like to hear it before I, a) splurge on a new one and / or b) head over to astrobaby.com for strip-down instructions.

Thanks.