Operating System: Windows 7 Home Premium SP1. Intel Core i3 2.53ghz 3.00gb ram

The problem: Windows Media Player plays sound not video, just displays the first frame. WINDOWS LIVE MovieMaker has a system error "The progam can't start because d3dx10_41.dll is missing from your computer. Try reinstalling the program to fix this problem".
Windows Live Photo Gallery will not display pictures " Windows Live Photo Gallery encountered an error loading WLXPhotoViewer.dll and can't start. Error code 0x8007007e"

Noticed this issue soon after using my TV as a second screen via HDMI.
Is there a simple solution to this? Like re-installing the Display Adapter? 
I have sent a group e-mail the other day and went to send one today and that error code comes up.  Need help figuring out this issue am getting very frustrated.