Guys
A problem has been identified in the latest Videobox update (3.6.5.0) that may cause some computers to 'hang' during start-up, so as a precaution we have reverted to the previous version 3.6.0.0 download.If you are affected by this then un-install your current version and download again, if you are working fine then do nothing.
Thanks to Mark N for the problem report and the kind use of his computer 