Movie files where playing in a bunch of mixed colors as well as the dxva_sig.txt popping up on screen.
It seem to have something to do with the latest Radeon driver release.
Anyways the fix is a Codec 75 install.
But Windows being the POS it is - installing Codec 75 from good'ol MicroSoft ala:
http://codecs.microsoft.com/codecs/i386/voxmsdec.CAB You can find security settings wont allow for this codec to be installed ...go figure!
So some kind person on the net made a quick and easy .exe that installs the needed codecs without the need for shitty windows security settings to be altered. YAY!
http://www.keystonelearning.com/company/support/files/Codec/codecpatch1.0.zip