I was disappointed when I first began to use IE10. I felt they had got ahead of the game. Several sites I visit threw problems at me, and I found multitasking more than one instance of IE, caused it to freeze. I know, Tabbing can be used, but it is my preference to cross read items that way .Anyhow, I elected to select "compatibility" mode for all sites. The problems all went away. I am quite impressed, now, with IE10's performance.