I have the same issue as well. I noticed that if I start windows mail from
the IE8 browser, then it apears to work ok. But if I start windows mail from
the start menu, that is when I have problems. With that all said. I went to
the start menu and removed the shortcut from the start menu, then I went to
the applacation source and started the progam from there, and tried it again.
And everything seems to be working fine. I then re-pinned it back into the
start menu. I hope this is the fix, because I havent had a single issue with
this program until I installed the IE8.