I have XPhome and if I power cycle my computer I have no control over my USB Logitech trackball mouse until I unplug and plug it back in then every thing works fine. If I restart windows the mouse works fine. This isn't a major problem, as I leave the machine running 24/7, but it is an annoyance. I would shutdown if it wasn't a problem to restart.
My system is a AMD Athlon XP 2800+ w/ 512Mb Ram running on a biostar M7NCD mobo.