more 9.04 wireless (IPV6?) woes

[Paul Kaplan]

Running kubuntu 9.04.
I have one machine that is still not able to connect to my wireless network 
with WPA-PSK security, even after I've replaced the NetworkManager Plasmoid 
with wicd.

I just remembered that several *buntu versions ago on this same hardware I 
needed to kill IPV6 to get a reliable connection, so I wonder whether this 
problem has reappeared.

The directions for killing IPV6 on the wiki are for 8.04 and earlier.

Does anyone know how to kill IPV6 in 9.04?

Paul