I have an ultra high definition screen.
I added a toolbar (aka quicklaunch) to my task bar.
When I run applications that change the resolution and then come back to windows, the task bar re-sizes incorrectly. It adds an extra row to my toolbar area.
It happens every time, whether the taskbar is locked or not. I disabled start10 and the problem goes away.
here are the before and after screenshots
http://imgur.com/a/ZWbFJ
