Hi I've copied and pasted viewports many times in the past, but now it seems to fail example clip from text screen (note: viewport layer not locked) Command: _copybase Specify base point: 1 found ...(selected a viewport) Command: Command: _pasteclip Command: ..notice...no prompt for insertion point...........nothing pasted.....no error message... Command: _copybase Specify base point: 1 found ....(copied a dimension entity) Command: _pasteclip Duplicate definition of block _ArchTick ignored. Specify insertion point: .....note pasteclip works with objects other than viewports only viewport objects seem to have this problem note: the same problem wheter called in my lisp routine or manually via acad commands (defun C:CZ();copyclip at '(0 0) (command "_copybase" "_non" '(0 0 0))) (defun C:PZ();Pasteclip at '(0 0) (command "_pasteclip" "_non" '(0 0 0))) has anyone else experienced this? any solutions? why would it suddenly stop working...and why does it work sometimes and not others? on further study the drawings in which it doesn't work were created from a template. it also does not work in the template file or in any drawings based on the template file any info appreciated tia Mark