Cloth not responding to external/random acceleration

Hey
I have a little cloth that I use as a flag, and it's suppose to point at the direction of the wind.
The problem is that I can't figure how to apply any force to it.
When I enable/disable gravity (on the cloth component) it does go wild a little, but it doesn't respond to the external or random acceleration AT ALL. I can make it move and spin with no purpose by timing the gravity option, but how can I decide its direction?

Thank you!

 

Same here. probably bug.

 

Is it my imagination or is it now responding to local acceleration? If this has been changed I can't find any reference to it. In fact the documentation has never said it uses world space, but that was working for me before..