XnView Software

With the new version 1.7.1 I can open a TIF, but to view it 100%, I have to press SHIFT + Left Mouse Button. In older version I could just double click the image to enlarge.

Is this by purpose, or is it a bug?

OK, finally found the setting and solved the problem:

Settings -> Mouse -> Left button -> No modifier -> Zoom & move

brought back the old behavior!