Okay, sweet.
I'll totally just change it to WEP only when I'm using my DS. Thanks again for your help.
Though I'm getting some weird error message saying "Key 1 is wrong, the legal characters are 0~9, A~Z or a~z" when I try saving my settings after entering in WEP Key 1.. And I'm obviously not using any characters other than the ones it's specifying.
Nevermind.. I had a derp-moment..