If you are having issues with the videos, its most likely you browser.
Simply try to log in from another browser into your members area, and it should work just fine.
The platform we use is extremely stable and thousands of our users view videos every day.
If you tried another browser and you're still experiencing issues, try RESTARTING your PC...
That should solve the problem...
And if you're still having issues after rebooting your PC and trying another browser, simply try to open ANY video online, like from https://youtube.com and see if that works... if you can see the video and hear sound but still don't see anything from the members area video, please submit a ticket and we'll take a closer look at that video.
Thanks and don't forget to REBOOT your pc, it takes care of 99% of all problems.