Craig,

Often, that error occurs when one object has an invalid controlsource - ie misspelled or deleted field. To find the offending object, throw a temporary SET STEP ON into the error method of your base classes. I usually test one class at a time, starting with the textbox.

>I'm getting the message, "Error instantiating the object".
>
>Here's the code:
>
>ox = CREATEOBJECT("PatientMaintForm", "TDBM")
>
>I get no other errors. I've recompiled everything and get no errors. There are no ActiveX controls or COM Servers associated with this class. Any ideas what is causing this error?