https://forums.autodesk.com/t5/3ds-max-forum/max-2016-groups-cause-viewport-slowdown/m-p/5656314#M88744 <P>Just one more thing..</P><P>&nbsp;</P><P>Drop the undo count to 1... no more problems..</P><P>&nbsp;</P><P>Of course , it's not a solution ...</P><P>&nbsp;</P><P>RR</P> Fri, 29 May 2015 09:46:26 GMT Anonymous 2015-05-29T09:46:26Z