On my work laptop, it seems like the whole browser window is active, so when I use the cursor keys the whole window scrolls.

On my home desktop, it seems like something inside the window itself is active, so when I use the cursor keys a text cursor in that window moves. If there is a lot of text in paragraph form it will scroll line by line, but if it is like a forum page, the cursor (and hence the scrolling) is all over the map depending on what text it is on, either the poster information or the text posted.

Is there any way to get the home machine behavior to mimic that of the laptop? I haven't had any success trying to figure it out yet.