>>Stupid question: does the new form have AutoCenter = True ??
>>
>
>Good thought, but no. It does, however, have it's titlebar shut off. I tried adjusting for it using SYSMETRIC(9), but that made things worse.

Okay, *next* crazy idea (g) -- since you said they're nested, could you possibly need to do an OBJTOCLIENT() on the ThisForm.Top value (using the new form's Parent rather than ThisForm, maybe) ?