Safari (on Mac and Windows) offers a feature called Private Browsing.
You can turn this on via the Edit drop-down on Windows or from Safari on the Mac.
When Private browsing is turned on, Safari won't store your Google searches, your cookies, the history of sites you've visited, your download history, or information from online forms you've filled out.
If you've been browsing without private browsing turned on, just use Privacy Reset to empty your cache and clear Safari of your browsing, forms, and search history.
I did exactly as was recommended,knowing full well there is problems with Quicktime.It is,to me,a superb browser,small,concise,very fast,no silly toolbars to play with,fully functional with much more room on screen for the user.Just have to go into preferences and get rid of Apple as the start page,insert your own.With this great browser,I can finally sideline the IE7 which is too bulky,far too slow and cumbersome.Highly recommend it.