Went ahead and got two of these, since one purchase of pro "only" gives you access to using seven computers in the set-up , 1 primary and 6 secondary. Not sure if that means I only get to hook up 13 or 14 since I only want one primary. After alot of headaches of secondary computers not hooking up, scroll wheels not working and a couple other things, I got all 10 computers working with MP and love it. I had one final problem and that is MP, on my primary computer locks up within Everquest. I can move the mouse all around my primary computer with EQ running, but cannot control it (EQ does not crash, it is running fine...I just can't control it). The only thing to get out of it is to ctrl, alt, dlt and exit EQ, then restart...only to have it happen again shortly after. Have tried playing primary computer with EQ in windows only and that seemed to work better, but when I was logging off and shutting down other computers, once again I lost control on my primary computer of EQ (everything outside of EQ works fine). It works great except for this and unfortunately, this is a show stopper. Anyone have any ideas? Forums for MP itself seems pretty useless. The only work around I can think of is to make my computer I use only for surfing be the primary, but that would mean hooking my keyboard/mouse to it and always having it on as well as my main computer......which is not ideal.