Why does "new bin" button not work?

When I tried again tonight, I was able to use "new bin" after starting a new project just for test purposes. 

I then found I could go into other sub-bins or sub-folders and create bins where I wasn't able to before.

That's confusing because after resetting preferences and workstation setups this afternoon, the "new bin" button still wasn't working. In fact, it got a little worse, as the "new bin" button this afternoon was greyed out rather than merely inoperative.

I've attached my system specs in case that provides any hints.

Ann, did you see the screen shot that I posted with my original question?  I think that shows what you're asking for, but if not, please let me know.

CONCLUSION: So basically I'm back in business with the bins, though I'm not sure why.   I'll keep an eye on it and try to look for some rhyme or reason should this problem pop up again -- which seems likely, since I've had the issue off and on over the last few days.

Still, wouldn't be surprised if I'm doing something wrong (or at least statistically unusual, so to speak), since I am finding the learning curve steeper than expected.  That said, I am enjoying the learning experience and appreciate the suggestions from Ann, Mr. Grenadier and Peru Bob!