I'm not sure where else this would go so I'm putting it here.
On some of my Windows machines (my linux boxes are text only, for the moment) I use Mozilla 1.1 as a web browser. So far so good, but I have noticed that it lacks one feature that Internet Explorer has that I love.
I have a Microsoft optical mouse which has two buttons, a wheel, and two more buttons on the bottom where your thumb goes. In IE, those buttons are for forward/back scrolling. Works great in IE, doesn't work at all in Mozilla. Is there some option/trick I'm missing?
Also, take a look around the PET section. There are other interesting PET's.