> > <ignorant guess> Could the variation of the direction of the > > stripes depend on the monitor? </ignorant> I think there is more than one display problem. The full pyjamas, vertical stripes) which appear at boot, and which I have never seen. Rebooting (perhaps more than once) seems to clear it. There then appears to be a horizontal striped effect, possibly related to lazy task switching. I don't think I have seen that one. What I see are random horizontal white flashes over the screen, a pixel high, which appear after the screen saver has been woken up and the machine has been doing some heavy processing. This is cured by a simple F12, rmreinit nvidia <return> <return>. This effect is also random - a couple of weeks ago I saw it a number of times, whereas last week, I don't think it happened at all. My machine, an early one now over five years old, is on 24/7 but does get an occasional reboot. Chris... -- Chris Johnson --- To alter your preferences or leave the group, visit //www.freelists.org/list/iyonix-support Other info via //www.freelists.org/webpage/iyonix-support