I am getting groups of flashing black boxes on the screen whenever I play online videos like Netflix or Youtube.  The boxes appear in and around the address bar, and usually dissappear when I click around them, or go to a full screen view.

I have tried to take a screenshot of them, but the boxes do not appear in the screenshot.  I took a picture of them with my phone, .  There also doesn't seem to be a direct way to contact any type of support, just forums.  I have a 7870, and this problem just recently started after installing the new drivers.  I have checked my temp when this happens and it's sitting around 28-29C, so I know it's not overheating.  It only seems to happen when playing online videos in a window.  It's really annoying.

Once thing is certain, from time to time the Adobe Flash Player becomes extremely unstable. It usually happens after a bigger update. Now is such a time, you are not the only one who has problems with flash 11.6.

Possible solutions:

1. Downgrade. Currently I'm using 11.2 with Firefox, that one is still stable and has much better performance than the current 11.6. If you're using Chrome, you can't downgrade easily, try something else.

2. Disable hardware acceleration. Right click in the middle of the video, select settings, and untick the hardware acceleration checkbox. You may need to reload the page, restart the browser or maybe even restart the computer to have the corruption disappear.

3. If there was a specific Catalyst version you used before, and it worked with the current flash version, you can downgrade drivers as well. Just make sure you do a clean install, downgrading over the top will not work.

#2 is the easiest and fastest, so it should be the first thing to try.

CPU: AMD Phenom II X4 810 @ 3250MHz | RAM: Kingmax 2x2GB DDR2 800 @ 833MHz| MoBo: MSI K9A2 CF v1.0 (BIOS: 1.D)| GPU: Asus HD 6850 1024MB (DirectCu) @ 850/1100MHz | Display: Chili Green Vision L24FHD | PSU: PC Power & Cooling Silencer 750 Quad | OS: MS Windows 95 x64 Edition

CPU: Pentium 4 Northwood S478 @ 3200MHz | RAM: 1,5GB DDR 400| MoBo: Gigabyte GA-8S661FXMP-RZ | GPU: Abit Geforce Ti 4200 | Display: Dimarson 19" CRT | PSU: Noname 400W | OS: MS Windows XP Pro, Fedora 18