suddenly 9.3 stopped working from all browsers, well ff, iexplorer 8, and chrome. uninstalled, reinstalled, and repaired, tried registry edits and checks and other stuff at http://kb2.adobe.com/cps/328/328233.html, but nothing seems to fix problem. in the registry delete suggestion, I can't delete the 2nd key, AcroExch.Document.7, just won't let it happen.
9.3 works ok by itself. this is for win xp pro. can't open website files or local files. totally stumped here.