Operating system and graphics card
Windows 7 Ultimate, GTX 970.
Broken: All new from Buildbot including Gooseberry branch.
Worked: Official from Blender.org
Short description of error
Like in topic. Cloth object don't collide with collision object, and don't collide with itself.
Exact steps for others to reproduce the error
Add plane, subdivide, add to it cloth simulation. Add sphere, add collision and watch.