I've been having issues with my mouse settings under the system preferences, specifically with the 'scrolling' option. I set the scrolling all the way up so I can scroll down websites a little bit quicker, but after a day or so, I will goto scroll and it will only move a tiny bit. I goto check the settings and the scrolling is now turned all the way down, everything else stays the same. Is there a way to stop this from happening? Maybe 'lock' the settings somehow?