I put this in here because i didnt really know anywhere else to put it and its semi-gaming, so oh well. At christmas 2004 i bought a MX510, it worked for 5-6 months and then the right and left click buttons became very random in FPS Games( Would Aim when i didnt press anything etc) so i just thought it had worn out so i bought a new one, and now, just about 1 month later, it is starting to be very strange again. Sometimes rightclick will hold down after i press it, sometimes left click will keep holding down causing some random shooting in games, and sometimes the middle mousebutton will get stuck too. I really am sick of this problem and wonder is there anyway to solve it? If not, its the last mouse i ever buy from Logitech.