We have recently upgraded to Access 2007 and I have a form that causes Access
to crash when I make a control (text box) dirty by typing in it, then move to
another control in the detail section using the tab key or mouse. If I click
on a control in the form header, then back to the detail section Access does
not crash. There are two text boxes which have this problem. There are no
event triggers on either control. I have tried the following to correct the
issue:

Deleted the control and recreated it from scratch.
Deleted the form and imported it from another copy of the MDB file.
Used Format Painter to reformat the control after creating it.

If I create a new form using the wizard on the table the form is bound to, I
do not have any issues. So far this is the only form that has exhibeted this
problem (though I haven't checked every form in the MDB yet).