WMV files won't show video, regardless of player

Not a single WMV file will show the video; audio from the clips work fine, but just no video. Everything worked fine just two days ago, but now neither WMP nor VLC work.

Did you get any warning info?

WMV Video Converter for mac, DVD to WMV Ripper.

No. When I try to play any wmv in WMP, it just has media changing.. before it starts playing. Then the video starts, sounds plays, but the video is black.