I have problem with flash video in IE 11, windows 8.1. I think its definitly caused by an update or something in the last week or so. My system is newly installed not even a month old. First few weeks after the install was fine and now i would be lucky to play a flash video (anywhere, youtube, cbs...) for more than 10 minutes. the majority of the crashing happens within one or two minutes of playing: After sometime into the video, sound would be lost or other times entire video would freeze and sometime even cause IE to crash. Only way to revive is to close IE and reopen.
I am rather certain that it is Flash's problem because when sound happens to be lost mid-stream, I can still open a mp3 and my system can play that just fine. When video freezes IE it self is still very muchly functional, and I have no problem doing other things...such as typing this reply...
My system:
WIndows 8.1 64bit Pro, CPU: i7-3770K, GPU: EVGA nVidia GeForce GTX 560Ti, Sound: Asus p8z77ws on board sound
IE 11.0.9600.16518 update 11.0.3 (KB2909921)
Flash: 12.0.0.77
Other plugins (i think unrelated but i'll list them anyway)
Java: 7.0.510.13
Silverlight: 5.1.30214.0
Windows Media Player: 12.0.9600.16384
I have no other Add-ons loaded as i said my system is new...
Please if anyone from the community could help, or even from Adobe 
BTW...i have done all of the suggested steps on the Adobe flash website...clean install...clear cache...increase cache...nothing worked...
Thanks
cnmdccra2