Here's a weird one: we are suddenly getting an AV in a Delphi 5 app that has been running fine for some time against an 8.1.5 database. (DOA 3.4.6.) The message coming back is: A component named DMLQuery already exists. Huh? Looks like DMLQuery is part of DOA's plumbing but we have never seen this one.

We would rather not open up the code on this app if we can avoid it. Any ideas what might suddenly be causing this?