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. Office Detect and Repair did not fix anything. I reset IE7. All works. The applied Restricted Sites Protection and the Office HTML delay is back. This is a repeatable process. I have not been able to narrow down which of the 3000+ sites is causing the problem.