
Tested for a 'few days' and no errors is confusing - especially with Mathias's statement that the trigger is a mere mouse movement over a palette - seems hard to avoid for days (?)Ĭorrect-a-mundo. Plus, we users are not privy to 'known incompatibilities' that Apple & the developers are. After that, I did as Mathias recommends = create a 'backdoor' by having the earlier OS on a bootable drive.ĪSC is a good resource for 'after the fact' - preemptive = not so much = too big and hard to search. *I must add that, somewhere in the deepest recesses of memory, I recall getting caught by this issue - ONCE. It may be that with all the 1000s of Apps available, Apple has decided to lump apps like QuarkExpress in with Games and such - seems "Productivity Software" was a term used for PROFESSIONAL Apps If I were 'consulting' with Apple regarding public relations, I would likely recommend compiling and publishing the Old List to avoid bricking someone's professional Mac There used to be considerable collaboration 'behind the scenes' that may not be continuing as efficiently these days.


If Quark knew in advance of the problem, I am pretty sure Apple did as well. One could peruse the list and make sure one's critical Apps were included before one punched the magic twanger. If I recall my decades of Mac use right, Apple used to publish a "compatibility list" - prominently as I recall - on the info section of the download page.
