Its simple and your question has not been answered. The reply is so generic that its like telling you to pull the plug on your computer and then restart..
HERE is the solution:
If you have the ATi Catalyst Control Center installed then you may have come accross hundreds if not thousands of event viewer records from “amdkmdag” with a single line of data “UVD Information”.
This is supposedly the graphics driver notifying you that a peice of video has not passed HDCP checks (read: DRM for video).
To disable this and suppress the messages, make the following registry change,
