Vista - Sending message problem

I could not find this one - to many similar topics...
Using: Windows Vista Home Premium - Windows Mail 6.0.6000.16386
Mail account with Gmail.
Receiving works fine. When new message is prepared, it remains in Outbox
(outbox folder however does not appear in Bold!). Status bar claims "Working
Online".
Clicking "Send/Receive" does not help.
Workaround: closing Windows Mail. After re-opening Windows Mail establishes
connection with Gmail servers, checks for new mail and also sends out all
mail from outbox. Then the messae also appears in "Sent Items" folder.
Message is sent only after restarting Windows Mail. Kind of works but is
annoying. Any solution available?

"JurijK" <JurijK@xxxxxx> wrote in message
news:3A67C882-4673-437F-84C1-8DEFFA5F9E8A@xxxxxxClick on Tools, then Accounts, then your email account, then Properties.
If there's no check mark in the box before Include this account when
receiving mail or synchronizing, click on this box and then Apply. Click
on OK and then Close.

Click on Tools, then Options. If there's no check mark in the box before
Send and receive messages at startup, click on this box and then Apply.
Click on Send. If there's no check mark in the box before Send messages
immediately, click on this box and then Apply. Click on OK.