Cannot Send Email using Outlook Office, but can with Outlook Expre

I see in the boards I am not the only one with this problem, I would like to
give you an Error code or a copy of the message only there isn't any.

you push the send/recieve button and it does it's thing, only it will not
send any outgoing messages, they are still in my Outbox, and the messages I
send to my other accounts arn't being recieved, however I have two Email
accounts set up here, 1 works and the other does not. However on Outlook
Express, they both work, and I have the settings to match.

I have tried to change the settings, the SMPT allows connection at both
ports 25 and 26, No matter what I do it won't work, I know it's not the ISP
since it works on my Desktop using Outlook Express.

Anyone got any Ideas I havn't tried yet?