So, I downloaded and applied the latest touch screen firmware update for the Dell Venue 8 Pro, version A02 dated 1/2/2014, and tried it out with my active stylus. Short story: I haven’t even tried inking with the stylus, because the hover-click problem—where the stylus will click buttons and links even when a centimeter or more from the screen—is worse than before the update.
I’ll try resetting some things and will report back if there’s any improvement. I’m not hopeful, however—I’m increasingly convinced that this is a hardware problem with the stylus, the screen, or a combination. Honestly, I wish Dell would just offer the option of turning the hover function off; that would solve most of the problem for me.