Just confirming issue mentioned above and adding symptoms that may be related...but this is on build 18.104.22.168 (Jan 24, 2016)
-- On WinXP no issues
-- On Win10, using scaling of text size, etc ("Customize your display") :
1. Will result in "split pointing"
a Arrow will track separate from actual mapped click point
b Point will be displayed (elsewhere) as faint but useful "DOT" (you can put this on top of real selection and click)
c. Arrow and DOT will be in sync at the extreme upper left corner, getting closer as movement approaches this corner
d. Arrow and DOT will be increasingly separated when movement goes to the right of the screen
2. Screen corruption tends to happen at past 150%
In a pinch (to do useful work), one can compensate movement relative to the above comments, and be able to click on things. So, watch for where the darn DOT is...THAT's click-actionable. In ADDITION, one may need to request a "screen refresh" as often as every other command or action.
Of course, this may already be fixed by now...