AMD Catalyst Driver Broke

[Paul Hein]

The minor update to xorg-x11-server-common-1.15.0-25.1.sl6.x86_64 broke 
the AMD Catalyst 14.12 (14.501.1003) graphics card driver.  It boots up 
just fine displaying everything but at the end we get a blank screen.  
The terminal windows are not there either.  It is the latest version of 
the driver and I am not certain what to do.  The error message is
(EE) fglrx(0): atiddxDriScreenInit failed. Probably kernel module 
missing or incompatible.

I tried to downgrade X11 rpms but it says "Only Upgrade available on 
package".

The graphics card is XFX FX-775A-ZNP4 Radeon HD 7750 and it is in a Dell 
PowerEdge T110 II.  Any ideas on what I can do?  Thank you for your help.
Paul