I've just bought an apple airport express base station so that I can play itunes through my stereo. I have never used a network nevermind a wireless one before. When I try to set it up I get this error message: This computer has no wireless interface enabled or windows is not set up to manage wireless networks on this computer. If you have a wireless card installed, click cancel to quit this application, verify that the wireless interface is enabled and allow windows to configure wireless network settings on this computer. Otherwise click OK to continue and configure the base station using using Ethernet. I don't know if I have a wireless card, I know that must sound dumb... so there's the problem. I could really use some help. Thanks in advance. Katie.