Since a while I've upgraded from version 2011 to 2012 (educational version). I noticed that the physical dynamics feature was more and more unbale to find solutions and now I think I found the problem and hope that someone knows the solution. What seems to be the case: every assembly with parts in it that are created in the 2012 version fails to do the physical dynamics giving the error: "Physical dynamics is unable to find solutions for this model. Physical dynamics has been disabled.". When I create parts by saving a part created under 2011 with a different name and then completely deleting it and building the desired part, physical dynamics works fine. When I add even the simplest cylinder created completely in 2012 to an assembly working perfectly with only 2011 parts, I get the error. Does anyone know how to fix this (besides starting all my parts from 2011 parts)?
Thanks in advance!