[ubuntu] Scroll Button Not Working Properly on Laptop

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http://ubuntuforums.org – hey guys, did a quick search on this here and on google to see if i could find a fix, but to no avail. it may be something very simple, but i'm very simple as well, and have not found a solution :( i've been using ubuntu on and off for the last few years, first time using 11.04. my scroll button (button in between left and right click, below track pad) is not functioning properly. when i try to scroll up or down, it scrolls up/down one line and stops. in all previous versions, and in windows, it functions properly (keeps scrolling until i stop holding the button). i've checked in the mouse s (Hardware)