OK, I doublechecked, and you are right, it is not a folder. You are right about the Print option appearing. Another clue is the CSVFileViewer option, which appears on CSV and .txt files. It was a .txt file. Here's another example, where I've included some background, i.e, more than just the context menu:
As you can see, the highlighted file, which was right-clicked, has a .txt extension. You can see the bottom of the screen (note the task bar fragment) where the context menu is cut off without the ability to scroll.
So, I did some more testing and realized there is actually a different factor at play here. This really surprised me.
It depends where on the line you right-click! Not on what the filetype is!
Here's an example:
First: right-click near the right end of the filename:
And here is the exact same folder & file with a right-click on the left edge:
As you can see, the scrollbar is missing! It's hard to tell, at first, that it's cut off, because there is a whole line at the bottom, but we know there are options missing by comparison to the click further to the right.
Note that I tried this in some other locations in the filesystem and I did not get consistent results. Sometimes it worked like this and sometimes it behaved correctly.
Re: your comments about DPI, screen res, etc. - I don't think that is what is at play here, given this case of the same file giving different menus depending where on the line it is clicked.
Can I send some logs or something that will help you puzzle this one out? Or I'd be happy to do some additional testing, if you'd like.
I'll also take a look at the de-cluttering article - sounds like a good idea regardless.
Thanks,
Yosh