Office 2007, when sending an XL attach. my window will not closeautomatically

I found this on line from July. This is exactly what is happening,
but I have not been able to find a solution. Your assistance will be
greatly appreciated. Thanks.

when I choose a
file such as .xls or .doc and do a "send to email recipient as
attachment" or
just attach a file, the new mail window appears as is normal. However,
when I
click send, the new email window stays on screen and does not go away.
The
recipient recieves the email without trouble and mine shows it in sent
items.
I have to manally "x" out of the email to close it. It is as if the
screen
does not update.