Two characters, one follows the other, screen scrolling = the second char shakes

[silverwolfpet]

What the titles says.

When a character follows another character, everything is fine if the screen is stationary. Once the screen scrolls from right to left, or left to right, the character that follows starts vibrating and shaking and trembling.

Thing I noticed... it only does that sometimes, usually when the following character is near the screen edge. Is there any way to fix this? The scrolling itself is smooth, I'm just having trouble with the characters.

I tried turning off the anti-sliding option. That fixes the problem, but their animations are messed up.

Also, still on topic... Can you lower the background image manually? The dimensions are right, yet I have a black bar on the bottom. Basically, the background is "lifted" about 20 pixels.

EDIT: I fixed the background issue. I just enlarged it a bit. No biggie.