I am more surprised than anyone that I have had very little problems cropping up since I upped to 10 about 5 months ago and I am 84, so guess it can't be too bad. I don't use any computer-based e-mail program however. We have a Go Daddy account here. It is kind of interesting, poking around and seeing what works and what doesn't and I have not gotten into any corners where I can't get out...yet. My laptop is over four years old.