Please read http://forums.cnet.com/5208-6132_102-0.html?forumID=32&threadID=242736&messageID=2457489
I'd go back to WPA.
Today at a friends request, I switched her wireless router from WPA to WEP. She had no troubles at all before today with the wireless signal. After switching over, she had a strong signal and could load web pages just fine. But coming back a few hours later, there was no signal. I reset the router, unplugged and replugged it in, tried repairing and nothing. Her computer will not even connect to an unsecured connection. Her laptop is unable to connect to the router as well, leading me to believe there's something wrong with it. Any ideas?