Bert,
I think you're supposed to be able to highlight hundreds of orders and mark them as "completed" which in essence deletes them from the orders window.
Gene,
I was able to do it once but never again. We are running 32 bit XP machines, 4Gigs RAM, I've tried it on two machines and get the same problem. If I delete one order I am fine. I have not tried doing it on our server.