Before and after all updates I repair permissions of my Macintosh HD partition (the only one I have) as I was told I should be doing from a Genius. I do however still have an odd problem with my dock. The Genius told me repairing permissions would fix it, but alas it did not. Whenever I restart my MacBook, there is an application on my dock that I removed prior to restarting and every time I do this it comes back when the computer turns back on. It removes with no problem but keeps coming back, like herpes! Aside from that, also on my dock, are my stacks and I changed the icons for them a few times. Every time I restart, along with the application that just won't quit, my icons for my stacks revert to the last ones I used, no matter what I do. Does anyone else have this problem or know how to fix it? All help is appreciated, thanks so much.