Well, worst case, WEP is EXTREMELY easy to crack. You should be able to download a program that can sniff the network and break the password in a couple of minutes if all else fails.
If you have any control at all over the encryption scheme, make the move to WPA, or even better WPA2. At least those take a little more than trivial effort to crack.
I just bought a new laptop and, go figure one of the very first things I do not have written down is the wireless network security key.
I have WEP in the setting in windows XP.
How can I VIEW my key?
I have a dsl router, a wireless printer, and I dont want to reconfigure everything from scratch.