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I've been to plenty of other wireless networks, most (in not all) work fine. I'm at my friend's house, bring up the list of wireless networks, choose his, it says "windows was unable to connect to (his router's name)". The window asking for the security key doesn't pop up. If I try connecting...

I hooked up the TV to the PC using the RGB connection, switched it to the "PC" channel, but it says, "Format not supported". What do I need to do to make them compatible? Also, nothing happens when I plug the Emerson TV to the PC using HDMI. So that's two different cables, neither working...