jsut strated using sw 2012 premium. transfered an assembly file from sw2011 premium. most of the components that were originated from the tool box (steel profiles such as tubings and angles) seem to be supressed in the feature manager tree, but i cannot unsupress them and they do not apear in the graphics. (each time i created a new component from the tool box, when i was still using 2011,  i resaved it as a part file with a different name (not the AI extension). how do i resolve it?