You can follow the below mentioned steps which should fix the issue:
•Open Internet Explorer, click on “Tools”, click on “Delete Browser History” then click on “Advanced” and click “Reset”.
•Ensure "Enable Hardware Acceleration" is unchecked, if not, right click on the video after opening video online (in hulu, youtube). Then click on the first folder “Display”. Uncheck "Enable Hardware Acceleration".
•Update Media Player Classic by clicking on the below mentioned URL: http://www.free-codecs.com/download...
•I will also suggest updating Flash Player from the site: http://get.adobe.com/flashplayer/?p...
Hope this Helps.
Thanks & Regards