Another Thing I discovered

Tech-Archive recommends: Fix windows errors by optimizing your registry

From: Daniel (Daniel_at_discussions.microsoft.com)
Date: 07/22/04 

Date: Thu, 22 Jul 2004 13:32:03 -0700

I hope this would help:

After the form has become "un-filtrable" even a normal open (without filtering or restrictions of any kind) - the form can be used to insert new records only, it even fails to show existing records.