How do you setup a scene with sperate objects that have cloth modifiers on them to be aware of each other - at the moment each object seems to ingnore the other ?
For instance a piece of cloth falling on a fixed piece of cloth - like a shirt onto a 'trampoline' ?
You need to increase the size of the particles within the cloth or the number of vertices in cloth mesh so that the particles collide with each other. We have a topic on that in the help file IIRC.