Deleteing an unsent message

Tech-Archive recommends: Speed Up your PC by fixing your registry

From: Shaun Harper (anonymous_at_discussions.microsoft.com)
Date: 04/14/04 

Date: Wed, 14 Apr 2004 00:02:40 -0700

Please help??
I tried to send a large message 758mb which will not
send, but now I cannot delete it, move it or otherwise
get rid of it. Any ideas??
Many thanks
Shaun