Is this possible? We recently moved from Mechanical Desktop 5 (MDT5) to Inventor 2011, and I need to migrate .dwg drawing files to Inventor, and be able to edit them in the future.

We have installed a temporary copy of MDT9 to facilitate this, but when I migrate files, I cannot edit the drawings. I get a message saying "Cannot modify library file..." "Componant is not checked out to you... edits are not allowed on this file"

To complicate matters the Inventor software is loaded on a 64 bit Windows 7 system.

Should we be able to import MDT5 files and be able to edit them in Inventor 2011?