I wrote on this forum a while ago about problems with my macbook (I did a security update that stopped midway, which lead to the disappearance of my dock, inability to drag or minimize items or to shut down properly, etc.) I managed to fix it and now safari is acting weird. When I go to one page, it will load but safari will quit, it freezes on on twitter, and the images and words on facebook and youtube are aligned to the left. can anyone help me fix these problems? how do i make it possible so that it won't quit or freeze, and how can i align images and text to the center on youtube and facebook? Any suggesstions will be greatly appreciated! thanks!