Comment 12 for bug 153769

You only need the packages without the -dev.

Just as a side note, I was also affected by another bug (I forget which number) in either nm or wpasupplicant (I believe it's the latter but I could be wrong) which caused enormous delays waiting to scan and then connect to APs. I have since "downgraded" to the Feisty packages for libnm-glib0, libnm-util0, network-manager, network-manager-gnome, wpasupplicant (not sure all needed downgrading...) and everything works again. Something broke in Gutsy and it _really_ annoyed me until I installed the Feisty packages. No more problems. I'm not going to "upgrade" nm or wpasupplicant again unless there's a compelling reason or I can be assured that it will work the same as or better than the Feisty packages.