When trying to save amendments or a drawing in Autocad Lt 2008 I am suddenly getting an error message which reads   *Warning* Multiply owned object, handle "2710"
This or similar error messages are showing in existing and new dwgs.  I am unable to save anything, consequently am in a desperate situation!
 
Help please.
 
Greenbuoy 

This should fix your problem: CAD Tip #1473Good Luck!!