Windows mail shuts down when "Insert" - "File Attachments" is sele

> A new problem with my windows mail started on January 16,2009. Up until that
> date my windows mail flawlessly without any major issues. After that date, I
> am now not able to send e-mail with attachments to any recipients.
> The problem started after I sent a movie file to a group of e-mail
> recipients on the 16th. I successfully sent the movie file, then tried to
> re-send the same movie file to a different group of recipients and this time
> when I selected "Insert" - followed by "File Attachment", my Attachment
> folder opened for a brief instant, then immediately shut down. I have read
> several threads attempting a fix to this problem, however, nothing has worked
> yet. I tried to delete the old e-mail account then add a new e-mail account
> with the same settings, hoping that might fix it, but it hasn't. I have also
> installed Windows Live and noted that an envelope appears in the upper right
> corner of my windows live messenger screen, however, when I select the
> envelope, it opens my Windows Mail program and the same results appear.
>
> H-E-L-P!