Outlook Stuck Outgoing E-mail

Outlook is displaying this message: Can't Open this Item.  Outlook has already begun transmitting.

It happens to the best of us.  We decide to send an e-mail with an attachment and accidentally send a 41 megabyte monster attachment.  Suddenly the system is on it's knees with the processor at 100% and nothing seems to work.

So what on earth are you supposed to do???  Relax.  We can help.

I started with a web search and the first results didn't help much.  This link does a pretty good job of going through the steps to unclog the outbox.  For me, the solution was Method 3, create a new .pst file.

http://www.howto-outlook.com/faq/messagestuckinoutbox.htm

Outlook 2003 was the version I was using, however I'm pretty sure the solutions will work for other versions.