For some reason I have having trouble getting on the net with any access point besides my own.  I was at my Uncles the other day and while I got a good connection with his wireless router, I could not get on the net.  The same thing happens with the access points at work.  However today I was at a Holiday in and after getting the connection (without being able to get on the net) I went under properties and unchecked the Use windows to configure my wireless network setting.  However when I got back home I could not get any signal at all from my wireless access point until I rechecked it.  Any ideas? Thanks.

-Mike