https://community.graphisoft.com/t5/Installation-update/active-window-going-blank/m-p/135848#M15717 <DIV class="actalk-migrated-content"><T>This might be a hardware isuue but am unsure. When working with more than one instance of ArchiCAD and switching between them, or when closing one instance down, the active windows in the earlier instance go blank, or more accurately, lime yellow. Zooming in and out with the scroll wheel displays correctly but when scroll or zoom is stopped the screen goes blank again. I typically have to re-start ArchiCAD to correct. <BR /> <BR /> Video card is NVIDIA GeForce FX 5200</T></DIV> Tue, 10 Nov 2009 00:25:34 GMT David Bearss 2009-11-10T00:25:34Z https://community.graphisoft.com/t5/Installation-update/active-window-going-blank/m-p/135848#M15717 <DIV class="actalk-migrated-content"><T>This might be a hardware isuue but am unsure. When working with more than one instance of ArchiCAD and switching between them, or when closing one instance down, the active windows in the earlier instance go blank, or more accurately, lime yellow. Zooming in and out with the scroll wheel displays correctly but when scroll or zoom is stopped the screen goes blank again. I typically have to re-start ArchiCAD to correct. <BR /> <BR /> Video card is NVIDIA GeForce FX 5200</T></DIV> Tue, 10 Nov 2009 00:25:34 GMT https://community.graphisoft.com/t5/Installation-update/active-window-going-blank/m-p/135848#M15717 David Bearss 2009-11-10T00:25:34Z https://community.graphisoft.com/t5/Installation-update/active-window-going-blank/m-p/135849#M15718 It may also be a graphics card driver issue. Tue, 10 Nov 2009 20:43:48 GMT https://community.graphisoft.com/t5/Installation-update/active-window-going-blank/m-p/135849#M15718 Laszlo Nagy 2009-11-10T20:43:48Z https://community.graphisoft.com/t5/Installation-update/active-window-going-blank/m-p/135850#M15719 Thanks Laszlo, I will see if I can round up a driver update. Wed, 11 Nov 2009 17:56:04 GMT https://community.graphisoft.com/t5/Installation-update/active-window-going-blank/m-p/135850#M15719 David Bearss 2009-11-11T17:56:04Z