In an attempt to free up some HDD space, I uninstalled 2010 since I seem to no longer use it on both machines (still have it running on laptop).  The instant I re-booted the machine without 2010, both 2011 and 2012 have lost the preview icons, and preview image that I have turned on.  I really depend on those to open the proper file.  What happened, or better yet... how can I get my preview vu back?  Thanks