[ubuntu] Need Help Connecting to Wireless

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http://ubuntuforums.org – So I just installed Ubuntu 10.04 on my laptop alongside Windows 7. When I try to connect to a wireless network (my own), it doesn't connect. It just keeps trying to connect, and every 1-2 minutes it gives me a message asking me for the authentication. I'm 100% sure the WEP key is correct though. I tried searching a few pages back, and no one seemed to be having a similar problem... so I'm sorry if this question has already been asked. EDIT: So when I restart, it says I'm connected, but when I try to use the internet, it says there is no connection. Then when I disconn (HowTos)