This site will look much better in a browser that supports web standards, but it is accessible to any browser or Internet device.
Go to tools, internet options, content, autocomplete and clear your forms
cache.
Microsoft has released a knowledgebase article about this problem:
Delayed Response When Editing Internet Explorer Forms and Outlook Express May
Take a Long Time to Start
http://support.microsoft.com/support/kb/articles/Q251/7/87.ASP
Malware may be the cause of your problem. Check out my
troubleshooting link for more advice.