Well, the MacBook continues to hum along (without Firefox crashing so much now that I maxed out the ram on it to its full 2 Gigs), but I have finally lost patients with the Mac Mighty Mouse I purchased over a year ago. It never tracked as well as the old Logitech usb mouse I had. Scrolling was always lame, and got lamer with use... always loosing the ability to scroll up in a browser. I'd have to hold the mouse down and spin the little ball backwards like made to clean it up, then I'd get some scrolling again... but now that doesn't work any more, so, I just hurled it from my desk towards the garbage can, and plugged in an ancient old Microsoft usb mouse. It is far superior to the Apple Mighty Mouse. Far superior.