I set up a Centos5 box at work a week or two ago. Today I had this bizarre, repeatable problem:
fire up firefox 3.5.1, browse to centos.org, go to the wiki, click the HOWTO button at the top of the page, and either at that point, or a moment later when clicking the link for the RAID documents, KABOOOOMMM!!! X dies and you return to a login prompt. I did it at least three times.
Not nice when I have other windows open with unsaved files open.
This box has some nvidia card or other, but I've NOT installed the closed nvidia drivers. haven't looked, but I guess that means it's using the nv driver instead.
Never seen that before, anybody else experienced it?