I have made no serious changes to my system, other than having to make some adjustments to the Apple iTunes application.  But all of the sudden I am unable to watch any .avi videos via my Linksys dma-2100 extender.  I have been using it for months with no issues.  I am using MediaBrower to display all of my files (Movies, TV shows, Home Movies).  Awsome 3 party addition by the way.  I can see all of my media using both MediaBrowser and via my Video Library; However when I open one I am presented with the Cannot play this file error, with a note about I may not have the correct codec installed.

 Any thoughs, this is driving me crazy.  It has worked rock solid for so long, to have a sudden issue is odd.