http://www.zwsoft.com/forum/viewthread.php?tid=1831 Hi, I've seen such kind of problem before, sometimes after certain operation, the viewport border will disappear which makes it cannot be deleted, selected or changed. Could you please send your problem titleblock to us as a sample to anaylse? We will keep confidential for you, our email is <a href="mailto:tech@zwcad.com" target="_blank">tech@zwcad.com</A> What version number of ZWCAD you are using? My suggestion now is use ZWCAD to create the titleblock especially the viewport inside. Thanks BryanS 2011-07-25 20:08:05 http://www.zwsoft.com/forum/viewthread.php?tid=1831&pid=13722 Thank you. BryanS 2011-08-08 12:46:37 http://www.zwsoft.com/forum/viewthread.php?tid=1831&pid=13692 Email Sent, thanks! BryanS 2011-07-26 07:32:01 http://www.zwsoft.com/forum/viewthread.php?tid=1831&pid=13688 When importing paperspace layouts, I found that the titleblocks that I have setup from AutoCad do not import the viewports correctly. Our viewports are based on objects, do they have a non rectangular shape. Even after I delete all objects on that layout, I find I still have a viewport, which has no entity. I can turn the polyline that we use for a veiwport into one, but then I have 2 veiwports. In short, after importing a titleblock, I have a veiwport that is not properly cropped, and cannot be deleted, selected, or changed. BryanS 2011-07-25 09:38:12