I get no odd messages from dmesg that could be linked to the USB problem. Currently I run PCLinuxOS .93, which is based on kernel 2.6.16, that is one minor release more recent than the kernel of Dapper, and here everything works great.
-- Inserting USB device causes system to hang https://launchpad.net/bugs/68140 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs