I am currently using a Samsung 40" TV UA40H5008 (1080p) as monitor,
Graphic card R9 280X with latest Catalyst 15.7.1, running AMD VSR uping resolution to 1440p.
Windows scaling to 100%.

The strange thing about the visual is, on every first start up (after a compete shut down), some items on the screen are wrongly scaled. Refer pic below:

Wrong scaling:

Correct scaling:

The only thing that seems wrongly scaled are desktop icons and NetSpeedMonitor tool on my taskbar.
I double checked resolution and scaling settings and they are indeed correct on 1440p and 100% scaling - changing scaling and resolution do not fix the problem. Only by restarting once, will the problem go away.

Any idea?