I just did a clean install of ML on my MBP 13 2010. Everything's fine, but one thing that I find quite annoying, even if it's probably a very simple matter for anyone on this forum except me... The problem is this : when I want to moves files, the Finder, Safari's window or any other built-in OS X frame, I have to press on the trackpad (so I hear the click) instead of just double "tapping"/touching like I used to do on Lion and SL. I just can't figure out how to modify this thing. I tried a few things in System preferences/trackpad, but nothing happened. Any ideas ? Help would be much appreciated. Thanks.