Only thing I can think is your browser itself is not set to accept cookies. In Netscape this is done by adjusting the settings under Edit ==> Preferences. Not sure about IE but somewhere there is a toggle to allow the browser to accept cookies. When it is set to not do so, for whatever reason, then the Mudcat server won't recognize your machine when they hook up (no nametag0 and will default to Guest. If you are getting cookies from other sites, this isn't it... and I can only suggest re-registering ... but I would check this out first.