After you click on a Commercial you want to run,  you could
get a screen that has a RED X in the upper left corner like this:

Look above that and see if  this appears:

NOTICE: Click anywhere on the bar, but Not the X at the end of the bar.

The Commercials page uses the "Windows Media Player" to run in your browser. 
Once you click on the bar you will see this:

Just click "Run Add-on".  This will allow your computer to run Commercials in your Microsoft Windows Media Player.