Mandriva 2008 immediately switches back to WEP instead of WPA
 

I have recently installed Mandriva 2008. It identifies my wifi-adaptor correctly, and it shows my wireless network in the list.
I don't manage to get a connection, though. The network uses WPA. I tried to configure Mandriva to use WPA, but when I reopen the configure window, after closing it with the OK-button, it says WEP again.

Please help! I can't figure it out. I already tried everything I could find on the internet, but nothing works.
I do have wpa_supplicant installed. But I don't know how to use it. The answers other people got on similar questions didn't work.

I just managed to install the windows driver with ndiswrapper instead of de linux driver. I followed the steps in this tutorial: http://www.linuxquestions.org/linux/...licant_working
With the step
it failed. A lot of "opperation not supported" errors and some other text.
I don't know how to fix it. Please help me!