In general, a simple change in the BIOS AGP/PCI settings can cause a stable machine to go wild. Can you post the machine hardware configuration? BTW, "DontZap" "False" is the default. You can delete it altogether. Gilboa On Fri, 2005-09-09 at 10:03 -0500, akonstam@xxxxxxxxxxx wrote: > We started out with the realization that ctrl-alt-backspace would not > work on our FC4 lab machines to restart the X server. > > Research led us to inset the following clause in the xorg.conf to > disable this key sequence altogether: > Section "ServerFlags" > Option "DontZap" "true" > EndSection > > Logic then led us to wonder if the clause: > Section "ServerFlags" > Option "DontZap" "false" > EndSection > > would allow ctrl-alt-backspace to operate as it should. The answer we > found was sometimes. In several cases two machines with identical > hardware and identical software would have different behavior. One of > the pair would work and the other would go into a crazy state where > rebooting became necessary. > > Does anyone have any further wisdom of this matter that they are > willing to share? > > -- > > ======================================================================= > Do not meddle in the affairs of troff, for it is subtle and quick to anger. > ------------------------------------------- > Aaron Konstam > Computer Science > Trinity University > telephone: (210)-999-7484