I got a TB on launch day and it has been great to me. I noticed that the top corner of the screen was starting to come loose so I went back to Best Buy and had them exchange it for a new one. I came in to work today and tried to connect to my WiFi here and it wont connect at all. I NEVER had a problem with my first TB. Is there anything I can do to fix this? I already tried a hard reset. Or am I going to have to go back to Best Buy today after work and get another one? Thanks everyone.