https://community.graphisoft.com/t5/Installation-update/Error-Report/m-p/9707#M1278 Try changing the "Apron Thickness" to zero rather than the width. This should give you the same result (No Apron) without the error messages. Tue, 31 Aug 2004 19:25:14 GMT Anonymous 2004-08-31T19:25:14Z https://community.graphisoft.com/t5/Installation-update/Error-Report/m-p/9706#M1277 <DIV class="actalk-migrated-content"><T>I'm not sure if this is the location to report errors, but in the Library, when I use the Window: W1 Casement FixedU 81 and change the Apron Width to Zero (0), I get all kinds of errors.<BR /> <BR /> Thanks.</T></DIV> Tue, 31 Aug 2004 15:31:03 GMT https://community.graphisoft.com/t5/Installation-update/Error-Report/m-p/9706#M1277 Anonymous 2004-08-31T15:31:03Z https://community.graphisoft.com/t5/Installation-update/Error-Report/m-p/9707#M1278 Try changing the "Apron Thickness" to zero rather than the width. This should give you the same result (No Apron) without the error messages. Tue, 31 Aug 2004 19:25:14 GMT https://community.graphisoft.com/t5/Installation-update/Error-Report/m-p/9707#M1278 Anonymous 2004-08-31T19:25:14Z https://community.graphisoft.com/t5/Installation-update/Error-Report/m-p/9708#M1279 That seemed to have been a good work-around. Thanks. Wed, 01 Sep 2004 13:27:58 GMT https://community.graphisoft.com/t5/Installation-update/Error-Report/m-p/9708#M1279 Anonymous 2004-09-01T13:27:58Z