If your browser is not letting Flash Player videos play, try these steps.
To Resolve: Edit
1. Run - inetcpl.cpl - "Advanced" Tab - "Reset" - Make sure to leave the "Delete Personal Settings" unchecked. This should be one of the first steps for most IE issues. Firefox and Chrome have similar functions.
2. Check to see if you have a special type of Malware called "Sendori" installed, this is a known issue. While checking, make sure to uninstall any other programs you are not familiar with and you don't use.