Enabling The New Dynamic Extrude
You can reconfigure your system to use a new more dynamic interface to the Extrude function. If you choose to do so, and except for editing those extrude features created by it, the legacy Extrude function will be unavailable.
Navigate to the directory defined...
Try importing to a 'new' file rather than the 'existing' one you have open. Give it a name and when you open it you should see the 'dxf' or 'dwg' file in the modelling view.
The problem is UG is trying to run in Win2000 mode.
Rename this file "ungraphics.sdb" in the UGII folder to "ungraphics.bak" and start UG, it should work.
Regards
Mick