Is it just me or have they tweaked the Safari tabs in a recent update? Now, my Safari tabs are subtly different and no longer 'light up' the selected tab. The only difference between the selected tab and all the others is a thin line which encloses the tab. It was definitely not like this before today (when I updated my computer with the new iTunes, Quicktime and Security updates). I hate it and I'm struggling to see which tab is the current one!!! I have enclosed a picture. Anyone else noticed any difference? How can I get it back to how it was?