1. please reboot, reproduce and attach your complete syslog taken after that.
2. please attach the output of lshal, lsusb and lspci
3. try to install linux-backport-modules-jaunty (experimental wireless drivers)
and see if that helps.
** Package changed: network-manager-applet (Ubuntu) => networ
** Attachment added: "Dependencies.txt"
http://launchpadlibrarian.net/24883574/Dependencies.txt
** Attachment added: "Gconf.txt"
http://launchpadlibrarian.net/24883576/Gconf.txt
** Attachment added: "IfupdownConfig.txt"
http://launchpadlibrarian.net/24883578/IfupdownConfig.txt
** Attac
