how do you stop actor from falling into another actor?

nickbuakaew

i have a boxs game that box are falling on top of each other.
the problem is that when box are falling on top it also falling into the below actor by 2 or 3 pixels.
and yes i did put collide. i want to use gravity @500

dwibre

First off check that your collision is rectangular. Secondly up the density of you boxes see if that helps.