Com Error - IDispatch Error #3119 on querying MS Access Db

[jhauic]

Hi,
During an access to an Acess database I receive the following Error:
Com Error - IDispatch Error #3119

Unfortunately it's a generic error dialog and I can't step through the code to find the actual place that generates it.

According to an error list on some obscure website the error #3119 is: Can't group on MEMO or OLE Object <clause>.

Since I didn't code it I need a starting place to figure out which database table / query might be causing the problem.

Any suggestions?
(I'm cross-posting this in the MS Access Forum too.)