So, a couple of weeks ago I could easily downgrade from 4.0 to 3.1.2 with just shift-click restore on ipod touch 2g mb (non-mc). 3.1.3 didn't work but 3.1.2 did for some reason. Now when I try it 3.1.2 or 3.1.3, I ALWAYS get 3194 error. Since its an mb it should be able to downgrade right..? It just gets to "preparing for restore", and BAM error. It doesn't even start replacing/erasing files.