Control 24 Personality issue

[youngas75]

We've been using our 7.4 on Tiger for months without any problems then this weekend the control 24 drops offline and says there's an error with the personality for the unit. I had a search through the forums and found that it could be a system file move, a dodgy cable or a bundle missing. I checked and changed the cable, no joy. I checked the bundles, file is in there so as a last resort I re-installed PT and it was ok... for 1 day. Did it again.

So today I re-installed PT again and it was fine for 1 launch. Came out of PT to remove some ext drives, relaunched and the same error message came up. I don't really fancy re-installing every day as I'm sure you'll all appreciate, anyone got any ideas?

System:
Mac Pro dual intel
Tiger
PTHD 7.4 Accel 3
Control 24 (old one)
192 i/o

I've two of these systems, one for tracking, one for mixing and the tracking one is fine (so far, hope I haven't angered the Gods of PT now!) but the mixing is for 5.1 so can't just drop down to 1 studio for a while