i installed recent updates to safari and now my computer will not launch safari, it always gives a message about not being able to recognize it and provides a dialogue box to send message to apple. of course no results there. can someone help me out? can i reset the system to a previous date? i have emptied cache etc and nothing works. really need to keep my bookmarks so can i reload safari from disks provided with computer and not lose my bookmarks? or is there another way? thanks to anyone who can help.