I just realised how much I hate this. When i'm watching a fullscreen video on my computer the mouse doesn't go off the screen and because the border of it is white you can see it at the side of the screen. After a few seconds it does dissapear though but if you watch a fullscreen flash video such as on BBC iPlayer or YouTube, the mouse remains there with that white line sticking out on the side of the screen. This is very annoying. Also, if you put the cursor off the bottom of the screen, the dock pops up so unless you disable the dock temporarily and then put it in the bottom right corner (where it only takes up 1 pixel), it's very obvious and annoying. Anybody else?