I upgraded my iMac to Mountain Lion over the weekend and since have problems with InDesign CS5 crashing when I paste text from one InD document to another.
Model Name: iMac
Model Identifier: iMac10,1
Processor Name: Intel Core 2 Duo
Processor Speed: 3.06 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 12 GB
Bus Speed: 1.07 GHz
Boot ROM Version: IM101.00CC.B00
SMC Version (system): 1.52f9
In-place upgrades are always a crapshoot. Try trashing the prefs (see Replace Your Preferences), but most likely you'll have to reinstall ID at the very least. YOu may have to do a clean install on the OS as well.
Agree with Peter. It will take you less time to back up your data, deactivate the software and do a proper installation of the O/S followed by a reinstall of the applications.
And I'm not sure how well CS5 will work on Mountain Lion, anyway.
Will try that. Thanks for the responses.