I am using Vista (Ultimate, SP1) for the first time, and though I quite like
Windows Mail (it seems a big improvement over Outlook Express!) I have a
frustrating problem with it.

When I compose a message, and hit the send button, I lose the Windows Mail
window and it switches to another open window (usually my browser).  The
email is sent fine, but it's frustrating to have to keep manually going back
to Windows Mail.

Can someone please explain why this is happening and suggest a fix?

Thanks,

Mike.