Started a new game, no mods, used the scroll wheel on my mouse to move the selected slot, invalid index exception followed by a bunch of null object exception until I alt-f4rd
I wanted to start off saying I hated a17 at first, but after giving it a chance it is actually more fun than a16.. But I'll give a fuller summery later.
I'm playing at default difficulty...fyi
Right now, I feel you Fun Pimps have nailed the perfect difficulty of Zombies for the most part...