>Something that's always puzzled me, but doesn't seem to do any harm:
>
>When you have a form open, and the Data Sessions window, you can see the name of the form, and the session # in brackets.
>
>eg. serRoutesFrm(2)
>
>Now I don't know if this happens when, say, another form is called and then you return to the first, or regardless, but at some point the DS now shows:
>
>Unknown(2)
>
>Maybe this happens after some intense I/O of one or more of the tables therein, maybe when records are added or deleted, maybe after one or more cursors has been created, say via SQL, I dunno!
>
>Anyone know how/why this happens and, indeed, if it *is* dangerous?

It is an indication of dangling reference, which is usually hard to find. David Frankenbach's utility ObjRef from his website may help you to identify the culprit.