https://community.graphisoft.com/t5/Modeling/AC16-Zoom-Guideline-Crash/m-p/188616#M102228 that sounds like a bug from an earlier build than the current. Your signature doesn't refer to the version you're using. Current AC16 is 3827. that bug was fixed.<BR /> <BR /> I think. Wed, 28 Aug 2013 18:02:47 GMT Aaron Bourgoin 2013-08-28T18:02:47Z https://community.graphisoft.com/t5/Modeling/AC16-Zoom-Guideline-Crash/m-p/188614#M102226 <DIV class="actalk-migrated-content"><T>In AC16, we are getting sluggish response and/or completely crashes when using the guidelines while closely zoomed in. Does anyone have any thoughts on this issue? FYI, rebooting/restarting/updating haven't fixed the problem.</T></DIV> Tue, 27 Aug 2013 14:28:44 GMT https://community.graphisoft.com/t5/Modeling/AC16-Zoom-Guideline-Crash/m-p/188614#M102226 Anonymous 2013-08-27T14:28:44Z https://community.graphisoft.com/t5/Modeling/AC16-Zoom-Guideline-Crash/m-p/188615#M102227 By updating do you mean your ArchiCAD version?<BR /> <BR /> If you update your graphics card drivers to the latest version, that may help this issue as it may be caused by some driver problem. Wed, 28 Aug 2013 13:00:42 GMT https://community.graphisoft.com/t5/Modeling/AC16-Zoom-Guideline-Crash/m-p/188615#M102227 Laszlo Nagy 2013-08-28T13:00:42Z https://community.graphisoft.com/t5/Modeling/AC16-Zoom-Guideline-Crash/m-p/188616#M102228 that sounds like a bug from an earlier build than the current. Your signature doesn't refer to the version you're using. Current AC16 is 3827. that bug was fixed.<BR /> <BR /> I think. Wed, 28 Aug 2013 18:02:47 GMT https://community.graphisoft.com/t5/Modeling/AC16-Zoom-Guideline-Crash/m-p/188616#M102228 Aaron Bourgoin 2013-08-28T18:02:47Z