Do you pick the controlSource from the drop down list of available fields?

>I have an option group. If the control source is micap I get an 1881 error - An error occurred while attempting to read in a form (.SCX) file. Issue is one of “Properties,” “Methods,” or “User Properties.”
>If I change the control source to xxx (or any other of field names) I get no error. "micap" is not listed as reserve word.Any ideas?