Hi, You mean to say that it hangs, the pointer never moves, and you loose the electricity connection. and rebooting solves the issue.
Could you say exactly what the problem is? Because, sudden stop of power to mouse, is to be considered as a annoying issue, for you cannot even move anything and you have to force power off the computer. If this is, then i will suggest , some registry tweak, that helped me to solve.
I tried update of drivers, manufa. drivers, etc. But , during hectic activity with slow speed opted pc, this issue is becoming increasingly annoyed.