I've been using SW Student Edition 2010-2011 and recently had to upgrade to SW Student Edition 2011-2012. I have created several complex motion study files in 2010-2011 that involved using forces defined by expressions. After upgrading to 2011-2012, I can no longer edit the force expressions I had input. When I click the "Edit" button, which was not present in 2010-2011 with force expressions, SW crashes. I can input new forces and expressions using what looks like a new interface, but redoing all my work would require way too much time. Is there a way to edit my force expressions like I could easily do in 2010-2011, or is this a bug that can/will be fixed in the near future?