forgot to say: if I unplug the mouse, wait a little and then plug it in again, it still doesn't work. The only thing, that "helps" is a reboot, but then it works again only a few minutes.
-- wireless optical USB-mouse stops working on a Toshiba Laptop in a few minutes https://launchpad.net/bugs/99098 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs