Has anyone encountered (and solved) a problem with Editor failing to open because it could not open apteqn.cf? This started here when we had both versions 5.1 and 5.2 on the same machine (though in different folders). Now, even though we've reverted back to v5.1 and have a clean install (meaning everything was removed, drive cleaned, system restarted, and software reinstalled) we're still getting this error - though only on a few files (critical ones, of course). Any and all suggestions for solving this would be greatly appreciated.
