Hi Fred

The error message is the standard 'generic' error message that doesn't tell
you anything other than Access isn't happy!

Have you tried adding Error Capture to the bit of the application that's
triggering the error response? This should give you an idea of why the error
arises.

If not, then identify where the error is occuring - perhaps when a form
opens, or a button being clicked. Add Error Capture to the event that
triggers the error along the lines of:

Private Sub .....
On Error Goto Err_Click
.... normal coding goes here....
Exit Sub
Err_Click:
MsgBox Err.Description
End Sub

You should now get a better description of what's going wrong.

Good luck.

BW