Hi. I have this mouse Mircosoft wireless intelimouse explorer. The problem is that sometimes it loose signal for 1sec or less,enough to disturb you.I may work it for 2weeks without a problem,but when it starts it doesnt stop.so its not the place of the adaptor cuz i dont have this pro b often,and in properties it shows both battery/signal are in very good level. I tried many usb ports but everywhere the same. Well,just to mention,when i m browsing my routers web interface and make a few changes it starts to lag. Also yesterday changed sth in my royter,and the mouse just freeze in a spot.it shows the light that the signal is ok,but nothing. In the 1st case,the light is off so its ok,but in 2nd place the light is on but no mouse. Any further nfo i ll help.