>I am experiencing system lockups since upgrading to OS 10.25 and >10.26 on PB 667, when using an external display as well as the >built-in LCD. When resizing, moving, or minimizing a window on the >external VGA monitor, the system will completely freeze forcing a >hard restart. Any insight? Are the graphics enhancements in quartz >extreme overtaxing the built-in 16 meg Radeon Mobility? I am running a 21-inch monitor off of my Ti500 with no problems (well, I can't get 24 bit color at the resolution I prefer...) Quartz Extreme is supposed to be bypassed if you don't have the required minimum VR to run it. -- <><><><><><><><><><><><><><><><> Mike Bigley Maineville, Ohio http://www.norbertrunning.com Please support an American Indian Elder & Medicine Man by visiting the above link. <><><><><><><><><><><><><><><><>