When in a browser, if I use the down arrow keys to move down the page, the page immediately goes to the bottom, instead of the next section of screen to be displayed. The Pageup/pagedown buttons have the same problem - they go to the absolute top and absolute bottom of the screen instead of going to just the next section of the page to be viewed. I have tested it and I do not have this problem in IE which makes me think it is not a setting on my particular machine (ie: scroll lock, etc) but more something is off in Firefox.