Good question. If I send someone to Apple, it breaks - will they hate me even more? Guess I still need to look a bit more though - getting someone new, M$-free, may be worth a bit of different-kinds of suffering.
As to Zip - dunno if their lazy 'engineering' of drivers extends to whatever library calls are made in Mac OS, but when I recently installed 3 W98SE-lites and it came time for Zips (my friend has one):
I noted the DLL-Hell reminders - some of the dlls that came with *latest download* from Gawd-forsaken Utah: included some old versions of popular ones - dates to '97 IIRC, while others are using '00 or later versions.
It's so bad re Zip that Roxio (inheritors of the Adaptec CDR s/ware marketing) have a note about specifically ~3 fav Old dlls which Zip still purveys to us all. They suggest renaming the Zip stuff to '.org' and putting latest dlls in \\sys folder. More stuff to do.
{sigh}
Natch I have no idea if.. such a phenom translates to your OS, nor if Apple OS can have several libraries of same name in memory, attached to different tasks. Last I heard: only One in memory for M$, though it will load from /sys initially, only if it doesn't find it first in the ap's own directory.
Dare you momentarily uninstall all Zip stuff? Could be telling.
Cheers,
Ashton