The Xorg r128 driver for X11 graphics has failed to startx for some weeks.
Today I tried again with the Preview DVD for Fedora 11 i386, and got the
same hang. Upon reboot into previously-working Fedora Core 4, the colors
are wrong: light yellow has become light pink. The RAMDAC has been fried.
The card is old. It could be coincidence; but beware.