Yes.
"Dan D." <(E-Mail Removed)> wrote in message
news

91986A3-180C-4C6C-8E90-(E-Mail Removed)...
> Using Outlook 2003. I tried to change outlook to cache mode and when I
> restarted outlook it apparently found an ost file that was already there.
> I
> guess someone had put this person in cache mode before and then changed it
> back. When outlook opened there were old emails in the file that had been
> recently read but were not showing as not having been read. I took it out
> of
> cache mode. Is it ok to delete the ost and oab files and start fresh but
> putting outlook back in cache mode?
>
> Thanks,
> --
> Dan D.