http://www.zwsoft.com/forum/viewthread.php?tid=1760 Hi, magla, Can you make your step more clearly? What I suppose from your describe is: First, you have one or several drawing open, and did some action, and the undo command is available. Then you open more drawings, and find out in the first drawing UNDO is disabled? Right? magla 2011-03-30 22:38:00 http://www.zwsoft.com/forum/viewthread.php?tid=1760&pid=13454 I've installed the latest version and FIND function isn't working... So, I guess I'll return to original 2011 installation... I originaly installed this new version because we're having problems with plotting (problems are with viewports; sometimes not all layers are displayed and sometimes even when all layers are displayed correctly, and they look fin on plot preview, they aren't plotted). Frustrating... ...and also SNAP function is worse than in 2010 version bkramari 2011-04-07 08:51:36 http://www.zwsoft.com/forum/viewthread.php?tid=1760&pid=13435 VERNUM:2010.11.25(16241) Ctrl+Z works And soon as it possible I will install latest version. magla 2011-04-01 06:07:03 http://www.zwsoft.com/forum/viewthread.php?tid=1760&pid=13430 Almost like that: 1)Open existing drawing ( the first) ,do something, Undo comand (on toolbar) is enabled 2)Open second existing drawing ,do something, Undo comand (on toolbar) is disabled for second drawing 2a) First drawing -Activated ,second drawing still opened Undo comand (on toolbar) is enabled on first drawing 3)Open 3th existing drawing ,do something, Undo comand (on toolbar) is disabled for 3th drawing 3a) First drawing -Activated ,second and 3th drawing are still opened Undo comand (on toolbar) is enabled on first drawing If I have more opened existing drawing UNDU works only on first one (first tab). magla 2011-03-31 15:28:13 http://www.zwsoft.com/forum/viewthread.php?tid=1760&pid=13420 ZWCAD 2011 Professional When I have opened more the two drawing, undo command is disabled for all drawings ! Is that normal ? magla 2011-03-30 07:43:51