This is the first I've heard of it happening on Windows 7. I've just loaded my user's laptop with Windows 7 so let's hope it doesn't start up again.
But there is a pretty clear picture of the causes of this issue, as stated by several users previously. Multiple monitors, with either different resolutions or different physical sizes, only the primary monitor is affected, it only affects specific applications
(Explorer, Chrome, IE, seems like applications with custom/non-standard title bars), and changing resolution or making the application full-screen (F11) and then exiting full-screen mode will fix it temporarily. It is almost certainly an issue with Windows
DPI scaling or its handling of multi-monitor setups.
However, I would also add that I have multiple monitors on my personal computer at home with different resolutions, one is 2160p and the other is 1080p, both are 24". I have never experienced this issue on my computer at home though, which just makes this
even more frustrating.