Why is has my Dock been doing this? this has been going on for the past week maybe a little longer but no more than 2 weeks. did i maybe move some graphic settings...? this happens at random times. when i go to dock preferences and move the dock to any other side this goes away, but it is annoying... by the way i am running on a Snow leopard, and i have 3GB of RAM. the icons on my dock that are affected by this are random, not always the same, sometimes there might be two only other times 4 etc.