Data Loss in Online 5.03 UC5??

We are experiencing random data loss. Parts of things that were there for several days/weeks/months are simply gone, leaving the remainder untouched. It's happening across a broad spectrum of applications (RDS 4.11) so I tend to reject the "You put something in your code to delete it" theory. If anyone has experienced similar problems - and RESOLVED them - or has knowledge of a known Informix bug that relates I would sincerely appreciate your feedback. ---dave--- J. David Schronce, DBA, SysAdmin, Programmer, blah, blah, blah.. Faster than the tallest building - Larger than a speeding bullet