If a post in a thread has any large images, it gets internal scrollbars (EVIL!), I'm guessing an iframe is being used. However, even when you do NOT have anything large that causes scrolling, it seems the iframes are still there. Hitting arrow up, arrow down, pgup, pgdwn, ctrl+home, or ctrl+end will not work when browsing a thread, even if the scroll wheel on the mouse will. Before any key can be used to move around, you have to click on the far left/right of any fo the threads to select the main thread. Otherwise it's trying to do it only in some invisible frame, which doesn't scroll (and thus your keys don't work)
Is there any way we can get rid of these frames/scrollbars?