In your original post you indicated you received an Unhandled Exception Error. Can you provide a screen shot of this error? If not maybe you could provide your Discussion Groups User ID in the details section of the AutoCAD LT Error Report from. I can search on jioke and might be able to troubleshoot your error from there.
Douglas Lauritsen, Autodesk Product Support
Douglas Lauritsen
Support Specialist
Product Support
Autodesk, Inc.