title: TortoiseSVN does not show context menu on files
body: <p>A while ago I updated TortoiseSVN to 1.7.7 (64 bit) on my Windows 7 64 bit. Since that time, I don't have a SVN contextmenu on files. I do have the contextmenu when I rightclick on a folder, but sometimes I'd like to do a <em>diff</em> or <em>change</em> on a file and that is no longer possible.</p>
  
  <p>I tried to reinstall and repair, but it didn't work. What should I try?</p>