I'm not sure why this occurs. But in Windows 10, the rubber-band selection feature (something truly useful) can fail badly. It seems fine in Win7.

If you set your Windows 10 Display size for values above 1.0x, the rubber-band is thrown way off. It becomes useless. I didn't realize this problem since I was always using the Win10 default display size of 1.0 (as my system indicated).

My apologies. I cannot say how long it will be before (or even if) I can repair the problem.

Lee