Your flash drive not auto mounting in Ubuntu, Kubuntu (maybe Xubuntu too) 9.10 32 or 64 bit like it used to in 9.04?
Try to install udev from proposed for now. Fire up your software sources and you need to enable “Pre-release updates”, close the app and from a console / terminal you have to type in
sudo apt-get update
sudo apt-get install udev
You may untick “Pre release updates” afterwards.
Reboot your machine (or restart udev) and everything should be auto mounting again.
I hope Ubuntu picks this up fast and make it into its regular update.
UPDATE: As of 23 November 2009, udev-147~-6.1 is already in the updates. So all you have to do is update udev and you should be good to go!
UPDATE: I have reverted back to previous udev version udev-147~-6 because of pulseadio memory leak. Now if you will need to insert a flash drive, a restart of udev might be a temporary fix until Ubuntu fixes this showstopper bug.
