Using XP-SP2, IE7, Outlook 2003 and the HTML format, there is a significant typing delay creating new e-mail messages, both using stationary and not. This happens on 2 different PCs.

Using text or rich text, there is no lag. I have eliminated anti-spyware and ant-virus as a cause. I believe that this is linked to IE7 somehow because if I then open IE7 from within Office is sometimes corrects the problem.

Office Detect and Repair did not fix anything.

I reset IE7 and all works. Re-immunize and the delay is back. This is repeatable. The same problem occurs with Spyware Blaster and enabling protection for restricted sites.