That's what I was thinking, but I deleted the old .ost file that was created with outlook 2k3, so this was essentially starting from scratch. And I would think that if this were an issue with the beta that we'd be seeing a significant amount of posts concerning the same issue. Most people running exchange and outlook use Cached exchange mode. It's like have a free backup system for your mailbox in case the Information store gets shot. I guess I'll download that program to report bugs.

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NATHAN WELDON
"John C. Harris" wrote in message ...
I just posted a message and getting same issues almost, and I am runnig OL2007. Must be a beta issue.
"Nate" wrote in message ...
Having a problem running outlook offline. I can't. I keep getting an error that outlook was unable to open my .ost file when I try to run outlook while not connected to my exchange server. So I set Outlook not to run in cached mode, deleted my .ost file, reset outlook to work in cached mode. Outlook creates the ost file, but still every time I try to run outlook offline, I get the same error that outlook could not open the .ost file because it could not access it or it was corrupt.
Sorry, using outlook 2007, worked fine while I was using outlook 2003.
Thanks.

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NATHAN WELDON