Thanks to jun kit (http://www.kianhean.com/2008/07/02/adium-alive-in-smu/#comments)
for sharing this with us!
He has found out that you go to
1.System Pref -> Network -> Advanced -> 802.11x
2.Delete all duplicate profiles on the left (the WPA:WLAN-Studen)
3.OR clear all profiles and enter the info like so with your own login info
4. Make sure only PEAP is selected, you are done!
This is suppose to solve adium/msn problems and perhaps printer problems?
But i can confirm it solves leopard asking you for your 802.11x password everytime u boot.
