Boy...you guys won't believe this.
I do have a Logitech mouse and keyboard but the drivers are Microsoft.
I did have a Wacom but un-installed it as well.
Nothing changed with that.
BUT...as a last ditch effort I was screwing around trying all sorts of things with prefs, mouse settings etc.
And discovered that while the drop downs still do not work...
I can in fact scroll through the drop down choices by using the arrow keys...left/right or up/down, and select by hitting Tab!!
Probably could do that all along.
Not sure how many choices there are supposed to be but in Noise flavour I have:
Perlin
Perlin billows
Perlin ridges
Perlin mix 1
Perlin mix 2
Which is 4 more than before!
Isn't that out there?
I am just going to continue with the tuts and not look a gift horse in the mouth...
Thanks for all your help!
Cheers, RonB