Got a problem with any version Ive observed through a friends After Effects, the UI has gone completely delayed as if it does not refresh anymore, tried reinstalling graphic drivers etc. He has been using it fine for a year, specs: quad i5, 16 gb ram NVidia gtx980 . This is something else going on inside Windows 8 architecture or something to do with an app, I've tried removing many things? It does say disk cache is not set within parameters and even when you set it, dont make a difference. Then I went and put in a 2 tb drive and used that to see and it still made no difference. Its odd as if it it is not being told to refresh itself, if you alt tab and go back it all of sudden refreshed quick then the problem continues.
Found the solution had to create a new local user account. There is something there that does not like something else.
Correction, partial solution, footage will play a little better, but something somewhere is tying memory or the way it works. After a new local user acc, memory draining apps are gone. There is something else fundamental in CC 14 you get the orange bar flashing each type to a new frame, that is not happening anymore since these issues had arose. So some sort of media processing is going on. Also Ram preview plays nothing, just audio. It will load and you can see a green bar but things appear missing?