My work gave me a Galaxy S phone the other day and I was mucking around with it before I put my sim card in it and was able to hook up the wireless and use the net so everything was cool. Then I decided to upgrade the firmware to 2.2 and put my sim card in but now I can't get back on the wireless, it has the wireless account but keeps trying to obtain the IP address and wont connect. Any ideas on how to fix this?