To me, it seems like it can have a lot to do with the mouse. I play from time to time at work (I know, bad) and the highest I've ever gotten is 215 or so (it's a roller ball piece of junk). I tried it at my parents' house, and on my dad's computer (wireless, optical) I could only get up to 225 tops. Then I used my siblings' computer (normal, not too old mouse) and instantly hit 240,000 and got my pin! Sadly I've been unable to win another (on other accounts yet) and keep hitting 238 or so. Sigh. I just need to be able to devote more than 20 minutes a week to that goal. ;-)