Unity 5 physics change from Unity 4 help!

Hi, I upgraded my project from unity 4.6 to unity 5 and the physics have completely changed (see attached picture) I cant work out why or how to get them back to working in the way they did in Unity 4.
Its just a simple box collider sliding along a terrain with both physical materials having very little friction.
Any help would be appreciated.
Thanks in advance! !

57020-unity5physics.png

Make sure you have any constraints turned off.57039-constraints.png

Turns out it was an animation issue.