That's using your browser then no?

That's just the browser zoom. It doesn't increase the quality of the photos.

This is a demo of what it looks like for me:

http://imgur.com/a/Mja3r

Dunno what to tell you. :/ It does need mouse focus, but I imagine you tried that. I did not need to use Ctrl.

I was talking about the feed, not the closeup gallery view.