Autodesk Inventor 2011 help

[Kai Williams]

To design the robot this year, I am using Autodesk Inventor 2011 Pro *Student Edition*. I am trying to enter a manual density for a sheet of aluminum honeycomb material (6 kg per cubic meter) and I can't seem to figure it out.

All of the forums tell me that I should be able to go into iProperties and, under the "Physical" tab, manually override the density value, but this never seems to work. Nothing happens when I click on the dialog box and try to enter a new value.

I am using the FIRST Robotics student edition of Autodesk, available for download here.

Any suggestions?