Up until last week I had only good, if not great, things to say about the mighty mouse. I read some negative reviews here and there (especially here on this site) but simply couldn't relate. Then last week seemingly out of the blue my scroll wheel felt like there was a "roughness" (like sand was in it) when scrolling and eventually (within a day) stopped scrolling down altogether. I happened to have a second mighty mouse (it was used for about a month or so) and I popped it on. Today it's starting to behave just like hte other one. So I guess these things suck. Does anyone have a recommendation for a replacement mouse that supports the "side buttons" or whatever you call them? I love the "squeeze" feature that shows all my windows.