Could you be more verbose on hotplug and kernel versions (at lease `uname -r`),
 mouse type (ps2, usb, ...), where does this occur (X, console)?

In case of linux-2.4, it might make sense to try linux-2.6 (compact-3.0+); in
case of console, you should restart gpm service.  With X, I can only suggest
checking that it's linux-2.6 and that mouse device in xorg.conf is
"/dev/input/mice".

Don't recall such things myself.

hotplug в Sisyphus не должен это воспроизводить на ядре 2.6