There seems to be a problem with Assassins Creed. I can't really control the d-pad with the keyboard. What happens is quite simple: when I hold a key, it only has effect for less than a second. It won't have any further effect, and from that it seems like I'll have to press it rapidly, but you know... I don't. I see one solution to it, though: why not put the jump-key on the keyboard? Would make it so much easier. And if it's already on the keyboard, where?
I have used mido.fayad's scripts for keyboard mappings, and I see that some keys do work quite well. It's just that the jump-key isn't functional.