Yeah, im having the same problem, i have the classical cordless optical mouse for maybe about 8 months or so. Recently, it has started shutting off in the middle of use after about 2 seconds of non-use(i.e. stop moving or clicking), but the light comes back on whenever i click either mouse button. The problem had gotten to a point where i went out and bought another classical optical mouse but i cannot get it to work either because the receiver won't pick up. Can you tell me either how to get my mouse to stop shutting off or how to get the new 1 to work?