Just put error handling in place to trap for the error number you get when you try to go to a new record while already on a new record. So something like this (at the top of the event):
Code:
On Error GoTo err_handler
at the bottom of the event:
Code:
Exit Sub
err_handler:
If err.Number <> PutWhateverErrorNumberYouGetHere Then
Msgbox err.Description, vbOkay, err.Number
Exit Sub
End If