On Sun, 2005-07-03 at 17:49 -0400, Pierre_Lamb@xxxxxxxx wrote: > > Why run memtest?? Does FC4 use memory differently than FC3??? FC3 ran > with no problems When you have a random error that talks about corruption - eliminating hardware problems is the first thing you want to do. Red Hat 7.2 ran perfectly for me. I installed RH 8 - and was getting random lockups, usually in XScreensaver. So I disabled XScreensaver - still got random lockups, though not as often - filed bugs for the video driver, as I was convinced that was it - box had been perfect in RH 7.2 Then one day it just stopped booting. Same RH8 install, same ram, same video card, new mobo but same chipset - new cpu but same specs - and it ran perfectly. The issue was clearly with my cpu/mobo and not RH8. It's just a good idea to eliminate hardware as the culprit if you can - especially with a random occurring error.