Bug: 3 possible behavioural bugs?

[sourdust]

By way of preface, I'm still a noob here and so I'm not sure if the following things are WAD, real issues, or possibly I'm just imagining them:

1) Oblique missile fire almost never hitting. When I have archers positioned centrally and they fire more or less directly laterally across the screen, I get what seem to be reasonable results. But when archers are firing diagonally or vertically across the battle screen, they seem to hit very seldom. This doesn't seem to have any logic to it. Have others noticed the phenomenon?

2) Chasing enemy raiders all over the place. A few times I've had a relatively powerful AI army intrude into my territory. It's strong enough to overrun PI, so I send a strong army chasing after it. Trouble it, they never ever seem to catch it before it moves on to another province - ie, the AI army always seems to move before my pursuing army. The result is a highly annoying cat-and-mouse game where I have to try to anticipate which territory he'll attack next, or alternatively just chase him around until he attacks a fortress, in which case he stays put long enough for me to nail him. As I read the rules, I should have a 50% of attacking him before he leaves a province, but that never seems to actually happen.

3) Is it possible to attack a province simultaneously from two adjacent provinces? I've tried to do this, in the expectation that my two attacking armies would join up and attack as one, but instead it seems that only one of my attacking armies will move (and get slaughtered...), while the other one stays put.