Clear cache (or "temporary internet files" in IE) as well.
However, you can go to the page that's misbehaving and ctrl+F5 will probably fix it. (that should reload the page ignoring any cached version the browser may have)
Imagine a pathologically idealistic, anti-religious, culturally-relativistic, iconoclastic, socially-irreverent, sociologically-progressive signature line here. Or don't.