I have this problem, but it happened 'out of the blue' with no KDE upgrading, nor system dist-upgrading.
KDE 3.5.4 Kubuntu 6.06 -- After upgrading to KDE 3.5.5 USB pen drives doesn't mount automatically https://launchpad.net/bugs/66307 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
