Comment 2 for bug 1163529

I would say that Birdie should check in this particular order:
- The effective resolution (can be restricted by ViewPortOut and then even more by ViewPortIn): here 1220x680;
- then if problem… The resolution mode: here 1280x720;
- and finally in the worst case… The (native) resolution of the screen: here 1920x1200.

In the present case, 1220x680 should be used.
And visibly, it's 1920x1200 that seems to be used here (as the image shown in the preview mode is really big).