Periodically I get a window with no title that pops up on my Windows 7 Pro desktop, seen here with the menu it offers after I right-click on it:
It appears to be related to Unicode and IME.
What is this? What are the likely ways I am making it pop up? Do I want it? (I don't think so since I've never been able to make it do anything for me.) How do I make it go away after it has popped up?
Update: I think it is browser-related. My browser (chrome) just burped and appeared to reload most of its open tabs, and the mystery window is gone now. I'd still like to know what the heck it is.