Adobe Flash gives me headaches. I upgraded from IE 9 to IE 10 and then to IE 11. IE 11 is a "pain in the but" because some programs seem to be killed by IE 11 (Google toolbar & Adobe Flash). Browser kept complaining over and over, that I should update Flash.
The Adobe help forum reported that IE 11 "doesn't like" Adobe Flash 11 (no, not Flash v12). So, I downgraded to IE 10 but even now IE "doesn't like" Flash v12". Tried to remove Flash and re-install but to no avail.
Now some videos do play, some videos don't play and some videos don't play (video) but then sound does work. Weird. don't know what to make of it.
Perhaps upgrading the driver for my AMD graphic chips(et) is part of the problem ?