Since I have upgraded to Windows 10 none of my chrome extensions are displaying popups when their icons are clicked and sometimes a small corner of the popup will display. I have discovered that when the window is on my main screen that the popups work fine (I have a 3 monitor setup).
I have tried many versions of Chrome and Chrome canary, 32 and 64 bit and all have this problem. I have also tried changing various GPU related flags but have had no luck with this either.
My video card is a GTX590 and as this is a dual GPU card it may explain why the popups are only seen on the monitor connected to GPU A and not the others.