Take a look at this:
http://validator.w3.org/check?uri=ht...1+Transitional
That should give you an idea what needs to be fixed. And that's just on the main page (
http://www.chiefdelphi.com/). For one thing, nothing at CD has a <!DOCTYPE> declaration. I'm assuming you want it to be HTML 4.01 Transitional but that's only my best guess. Taking some time to validate it means that it's more likely to work on other broswers. Also it's just a good idea in general.
Matt