WPA Network - Connecting ?

[GwWoYA]

Hi Guy's !

I have some problems . Yesterday , I succesfully connected to my WEP netwerk.
But because WEP isn't that safe , i've switches to WPA .
No I Can't connect anymore.

I've tried:
/etc/init.d/networking start , it does some things, and then I do:
/etc/init.d/wicd start , to start wicd , then I can find my network. I've changed the advanced configuration of the network, and entered my WPA key.
(I've tried both options of WPA there , preshared key, and the other one, passphrase I think.)

When I click connect, it says: Validation authentification, and then is says:
'NOT CONNECTED'

I've tried alot! I Also tried the tut here, with the wpa_supplicant.conf file, but when I need to start dhcp , it says that it's not installed.
And I need a connection to install..

Really don't know what to do anymore :/. An1 can help?
I've tried to search the forums, but I really didn't find a solution.. sorry guys.

Thx!

EDIT: Owyeah, I was using a Netgear Wg111v2 , but now i'm using an Alfa AWUS036H . still no luck
EDIT: Got a working , wired connection now. Wanted to try the wpa_supplicant tutorial again (xploitz) , but still no luck . That's an old old tut voor Backtrack 2 I think. Can't get it working..

[newbie1234]

im having the same problem..