I often get the above message (or something like it) when I log on to IE6. It also happens in Outlook Express 6 ie it can't find my email servers. The connection is OK. I've tried the registry fix in WinXP for the negative caching, but it doesn't seem to work. The only thing is to reboot. Anything else I can try? I have an ADSL USB modem running on Win XP.