SWISHER  This is the best browser in many respects. My problem has been accessing secured sites. One site, that uses RealPLayer to stream, set in motion an auto reload of the page that could not be stopped no matter how many times I restarted Opera. I had to shut down the browser and trash "Autosave.win" found in user>library>preferences>opera preferences>sessions>autosave.win. Then all worked OK unless I try to load the site again. Many of my secure access sites that require a log-in do not work so I am forced to use Safari or Firefox. The ability to set Opera to display itself as IE, Forefox or some other is vital to me, otherwise I will be forced to refrain from using the best browser I have found yet.  
(Version 9.51)