https://community.graphisoft.com/t5/Installation-update/Section-quot-open-error-quot/m-p/42878#M5451 It's referring to a CAD Image add-on/part so check with them. You both might do a search here as this came up within the last couple of months. Fri, 30 Oct 2009 03:55:29 GMT Erika Epstein 2009-10-30T03:55:29Z https://community.graphisoft.com/t5/Installation-update/Section-quot-open-error-quot/m-p/42877#M5450 <DIV class="actalk-migrated-content"><R>Hi all,<BR /> I come across with a "WARNING" saying "open error (file already used) while operating on file 'cadi_fonts pool.txt' " when I tried to open section.......&lt;&lt;&lt;<BR /> <BR /> what does that mean??<BR /> <BR /> <IMG src="https://community.graphisoft.com/legacyfs/online/emojis/icon_confused.gif" style="display : inline;" /></R></DIV> Thu, 20 Sep 2007 21:04:03 GMT https://community.graphisoft.com/t5/Installation-update/Section-quot-open-error-quot/m-p/42877#M5450 Anonymous 2007-09-20T21:04:03Z https://community.graphisoft.com/t5/Installation-update/Section-quot-open-error-quot/m-p/42878#M5451 It's referring to a CAD Image add-on/part so check with them. You both might do a search here as this came up within the last couple of months. Fri, 30 Oct 2009 03:55:29 GMT https://community.graphisoft.com/t5/Installation-update/Section-quot-open-error-quot/m-p/42878#M5451 Erika Epstein 2009-10-30T03:55:29Z