I'm having problems, too, and this is my first time using a forum, so forgive me if I'm not following protocol.
I'm using Windows 7 (64-bit) and Internet Explorer 10. I've made sure that the Adobe Shockwave Flash Object is Enabled in Manage Add-Ons. Adobe Flash Player 11 ActiveX is confirmed as a program in the Control Panel. I also just updated Java to make sure I have the most current version. When I click on a video (e.g., in Facebook), I receive a message stating, "Flash Player Upgrade Required." I don't know what else to try--any suggestions C.F. McBlob?
Download the Adobe Flash Player installer directly by right clicking the appropriate link and selecting "Save target as" (IE) or "Save Link as" (Firefox).