Cloth simulation , unable to set obstacle ..

Hi …
I have tried to make a couch, and now I want to use cloth modifier. It is not working please help, the cloth is just going through the couch … The cloth I have is a plane modified to be a sofa cloth with lots of subdivisions. I have tried to increase the face size to .1 and .2 … raised the quality to maximum and tried it still goes through the sofa …

Edit …

Attachments

towelfolded.blend (1.08 MB)

select the couch and set that as collision object

Nope I already did that … Maybe it has got to do with the geometry of my couch ??

Maybe it has got to do with the geometry of my couch ??
Maybe, but how is anyone supposed to know if you haven’t even bothered to supply a demo blend file for review !!!

Grab a new build, collisions were broken for a while there.

Ok i have included the blend file now, check on top … i am using blender 2.73

Cloth collision has a bug on 2.73. You must use 2.73a:
http://download.blender.org/release/Blender2.73/

2.73a is at the end of the list.

Edit:
On 2.74 cloth has some bugs too.