Hi My 1st post on this board... I inherited a //c system and then separately bought what looks like 5 identical m0100 mice. Now I need to verify whether all of them -- or at least one of them -- actually works with the system. What's the easiest way of doing it? I also inherited a bunch of software like WorkPerfect and some games but none of them seem to need a mouse. What should I do? Thanks much!