i have beem having the problems in my mouse for a quite a long time.....at first i was using windows XP and i noticed at some times the mouse doesnt work and it shows a error code 24 in the device manager... i tried unplugging the mouse and reinstalling the drivers... but nothing seems to work out.... :obut this happens only at some times the rest of the times the mouse works just fine.... im sure it is not a problem with the mouse as it works just fine in other computer.....now recently i upgraded to windows vista but sadly im still facing the same problem.... but the thing i noticed here is when i go the device manager in the mice and other pointing device if it shows as microsoft ps\2 then my mouse doesnt work amd the same error code 24 , but when i uninstalled the microsoft ps\2 drivers and when i reinstalled the com 2 port drivers,in the device manager mice and other pointing device if it shows as microsoft serial mouse and my mouse works just fine......this problems happens whenever i turn off and turn on my computer....... plz..plz... help me out.