https://community.graphisoft.com/t5/Installation-update/Graphic-card-ATI-4850-Radeon-HD-problems/m-p/207227#M21954 Nope, but I am using nVidia GeForce GTX 285. Sat, 18 Sep 2010 02:00:51 GMT Eduardo Rolon 2010-09-18T02:00:51Z https://community.graphisoft.com/t5/Installation-update/Graphic-card-ATI-4850-Radeon-HD-problems/m-p/207226#M21953 <DIV class="actalk-migrated-content"><T>I just wonder if anyone experienced system freezing (OSX 10.6.4 Snow Leopard + the latest graphic drivers update) or a significant performance slowdown when in 3D using OpenGL.<BR /> <BR /> We have some issues here on our iMacs.</T></DIV> Sat, 18 Sep 2010 01:54:58 GMT https://community.graphisoft.com/t5/Installation-update/Graphic-card-ATI-4850-Radeon-HD-problems/m-p/207226#M21953 Rob 2010-09-18T01:54:58Z https://community.graphisoft.com/t5/Installation-update/Graphic-card-ATI-4850-Radeon-HD-problems/m-p/207227#M21954 Nope, but I am using nVidia GeForce GTX 285. Sat, 18 Sep 2010 02:00:51 GMT https://community.graphisoft.com/t5/Installation-update/Graphic-card-ATI-4850-Radeon-HD-problems/m-p/207227#M21954 Eduardo Rolon 2010-09-18T02:00:51Z https://community.graphisoft.com/t5/Installation-update/Graphic-card-ATI-4850-Radeon-HD-problems/m-p/207228#M21955 All so very fast and sweet here Robert <IMG src="https://community.graphisoft.com/legacyfs/online/emojis/icon_biggrin.gif" style="display : inline;" /><BR /><IMG src="https://community.graphisoft.com/t5/image/serverpage/image-id/15750iB2A5B372D9F2B039/image-size/large?v=v2&amp;px=999" border="0" alt="iMac 27.png" title="iMac 27.png" /> Sun, 19 Sep 2010 01:59:18 GMT https://community.graphisoft.com/t5/Installation-update/Graphic-card-ATI-4850-Radeon-HD-problems/m-p/207228#M21955 Rod Jurich 2010-09-19T01:59:18Z