Well, aside from the inefficiency of the actual UI design, should I just "stop whining" and live with the fact that the game seems blissfully unaware of my cursor's actual position half the time, frequently highlighting the wrong items, or preventing me from selecting subsequent inventory items without completely exiting and re-entering the inventory screen? Or the fact that hotkey functionality is sub-par at best, working unpredictably with dual-wield combos, and dropping hotkey assignments when I get disarmed in combat?
It's fine with a controller on PC or console. With a m/k, it's junk. I don't care about the screen space or whatever, but getting to what you need with the m/k is ridiculous. I play with a controller and it's not bad, but m/k players are hosed on this one.
I bet if you used WSAD instead of clicking, you'd find no problems

. I agree that the mouse is useless and needs to be fixed, but one simple change to something a little less efficient (DAH KEEYBOORD) and all your problems are gone? It's like a dragon shout, but for the UI!
I'm saying that there is constructive criticism for the UI, and then there are dual-wielding axe maniacs who hate the game because of the UI. Just look at the UI [WIP] thread that DarN is active in. What a great discussion! But otherwise, it makes me feel like I've been chopping onion.
Edit:
WASD? What, are we living in 1986, or something? Not to mention even with keys or even the console controllers, things don't work as they're intended. Going to the wrong node on the "perk star maps" happens too often on both. Is that good design?
Simply switch to the mouse on the perk screen. It works correctly

! There's a work around for everything, baby!
MnM