I find it extremely annoying that wheel-scrolling up when you hit the top of a page tells the browser to go back to the previous page. It's just too easy to do accidentally. I'm running Linux Mint Katya, which is just Natty with a few tweaks. I hope this isn't one of them!

I don't see anything about the scrollwheel in the Mouse preference pane. Searching these forums reveals some seriously weird things people are doing with mice, but nothing about how to stop this annoying scrollwheel behavior. It happens in Firefox, Chrome, and Epiphany, so I doubt it is in the browser settings.

Help?