I've been experiencing an issue for the past couple days in which Flash videos will stop displaying anything but a solid green screen. I've looked up solutions and what was suggested was disabling hardware acceleration in Flash's settings, but this did not help the issue.
I experienced a similar issue before where Youtube videos would crash, the video would go green and an error popped up saying the video driver had crashed. This resolved itself over time however. The problem I'm experiencing now is somewhat different. I haven't had Youtube crash at all but my 1-2 hour long online university lectures do have an issue where they display a green screen, and audio continues but nothing else is displayed. Sometimes the video displays nothing but green from the get go, sometimes it occurs at a certain points(which varies) and sometimes it happens when I try to skip the video ahead. This hasn't happened in Youtube in excess of 20 minutes. So it seems very erratic.
I seem to be able to skip ahead or back a little at a time, but too far and I get the green screen. Sometimes the audio/video/time recording on the video skips and jitters instead of showing a green screen.
I've taken online courses which use the exact same system, up until late August and they didn't have any issues, so whatever caused this is likely recent.
My computer is having no other issues, Starcraft 2, Flash games, and League of Legends all run fine at high settings. My video card is running a little hot (~60C while browsing the web, but never goes above ~90 under gaming load).
I'm running Firefox (latest version), an ATI XFX 5850 graphics card, the Catalyst service says the graphics drivers are up to date, and I've uninstalled/reinstalled Flash as well as downloaded an all in one codec package. None of this helped (in fact it might have made it worse).
I looked to Google for a solution first and it was suggested that disabling hardware acceleration under Flash's settings would work, but that did nothing for me (so now I'm here).
The problem occurs in Internet Explorer as well (not sure which version).