The Custom form could not be opened. Outlook will use an Outlook f

[Steve]

Hi I get this message "The Custom form could not be opened. Outlook will use
an Outlook form" when I try and run the "OutlookSecurity.oft" file to change
outlook settings. I have cleared the cache and deleted any file in the
"C:\Documents and Settings\%User Name%\Local Settings\Application
Data\Microsoft\FORMS". Still no enjoy anyone have any ideas???