physics problems in latest 2.42 release

I want an object (just a cube for now) to have physics, but not have physics affect it’s rotation. (i.e/, I just want it to have gravity, be able to collide with terrain/walls and stop, etc). I thought that just leaving “rigid body” off would work, but apparently not. does anybody have the same problem/know the solution?

thanks a lot in advance.

2.42 will allow you to just have the object as dynamic, but not rigid body, for characters it is best to wait for character control features for the next version.