I'm using the stock browser (safari 533.1) on my Evo 2.2. Sometimes when I have multiple windows open, background windows close unexpectedly, with only the active window remaining open. This has been happening for months. (Besides this bug, Safari is ROCK solid. Won't move to another browser.) This can be the maddening when for instance I'm in the middle of writing a post on a background window. Is this happening to anybody else? Any fixes?