OK, I'm going officially insane now 😞
Yes, all my 8800s and 460s run 15.4.x and I *am* able to put special characters in.
My 480s run 15.3.x and can not.
I totally mucked up "primary" and "secondary" versions
Apologies to all, especially you! I'm blind, need more caffeine, or more sleep.
Just pretend I said "15.3" instead of "15.4" in all the previous posts 😞