Hoster 4.11 Windows 7 Show Display issue

[ddouglass]

Instead of dragging it to the second screen try double clicking on it. That should send it to the secondary in full screen mode.
If you drag it over then you need to grab the corners and stretch it out to full screen size.
Your resolutions on both displays really works best if they are set identical. If this is not possible (one a wide screen and the other not then get them as close as you can but keeping the correct aspect ratio for each.