Do you mean logging onto a wifi web site, or logging on to a wifi internet connection?
If you mean logging onto a wifi internet connection, then tell us how he connects to the internet.
Mark
I'm trying to help my father with a problem he's having. He is trying to log on to a WiFi site but The last time he logged in he accidentally checked "Do not show this message again" so now when he opens up I.E. he doesn't get the message box that he has to click to log in. How do you restore these messages? I don't know much about Vista
Any help would be greatly appreciated!

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