https://community.graphisoft.com/t5/Installation-update/Cannot-orbit-in-perspective-view/m-p/204166#M21717 I have found the problem it was a gridline element which caused the error Fri, 12 Mar 2010 18:49:15 GMT Anonymous 2010-03-12T18:49:15Z https://community.graphisoft.com/t5/Installation-update/Cannot-orbit-in-perspective-view/m-p/204165#M21716 <DIV class="actalk-migrated-content"><T>Hello Im currently working in archicad 12 student version. <BR /> After having finished my curtain wall i cannot rotate the 3d view in perspective mode. <BR /> the strange thing is that in axonometry mode im still able to rotate the model. <BR /> <BR /> Do you have any fix or workaround for this problem</T></DIV> Thu, 11 Mar 2010 21:32:30 GMT https://community.graphisoft.com/t5/Installation-update/Cannot-orbit-in-perspective-view/m-p/204165#M21716 Anonymous 2010-03-11T21:32:30Z https://community.graphisoft.com/t5/Installation-update/Cannot-orbit-in-perspective-view/m-p/204166#M21717 I have found the problem it was a gridline element which caused the error Fri, 12 Mar 2010 18:49:15 GMT https://community.graphisoft.com/t5/Installation-update/Cannot-orbit-in-perspective-view/m-p/204166#M21717 Anonymous 2010-03-12T18:49:15Z