On my development notebook, Apache would sometimes not fully server up pages (Coldfusion in this case). Sometimes you could view the source and see that it almost sent all the data but it was incomplete. The server logs all showed 200 status codes but my browser was not getting the full file. This happend with IE6, FF2, FF3. It wasn’t a browser issue AFAIK since adding
to my httpd.conf fixed it for me.