Crazy question regarding refresh and X

[Mike Klinke]

Ha!
 
I spoke a little too soon it seems.  After having got the box into 
the 16 bit/DRI=no mode freeze-up I rebooted into FC1 (dual boot 
machine with FC3T1) and while there I copied the 24 bit xorg 
configuration for the FC3T1 back to the proper xorg.conf file in 
anticipation of booting back into FC3T1.  When I did, what a 
surprise that was! There in all its ugly glory was the all the 
terrible refresh problems you've been describing. I'm guessing that 
my playing put the graphics controller into a rather unhappy state.  
Thankfully re-configuring the display back to "Thousands of Colors" 
reset everything on the next boot.

I'm guessing that one of the problems that you are having is that 
for some reason you cannot get your box into the 16 bit/DRI=yes 
mode.

Regards, Mike Klinke