fglrx crashes when setting certain video options [EPR#260347]

Binary package hint: xorg-driver-fglrx

Intrepid 2.6.27-7-generic #1 SMP Fri Oct 17 22:24:30 UTC 2008 x86_64 GNU/Linux

xorg-driver-fglrx:
  Installiert: 2:8.543-0ubuntu2
  Kandidat: 2:8.543-0ubuntu2
  Versions-Tabelle:
 *** 2:8.543-0ubuntu2 0
        500 http://ftp-stud.fht-esslingen.de intrepid/multiverse Packages
        100 /var/lib/dpkg/status

When I installed Intrepid alpha I tried to move my old configuration file /etc/X11/xorg.conf to the new intrepid install.
These options which were used to speed up video and reduce tearing and some other video improvments included this option (in the Device Section):
Option "TexturedXRender" "1"

I cam around, that as sonn as i added that option, my log in screen would flicker for about 1s and then die (with 1px blue vertical lines and ~30px yellow lines) and then a long blackscreen which will stayuntill you reboot.

The only option to reset these things is to set the option to zer0, and update /etc/ati/amd...
is to use thsi command:
sudo aticonfig --input=/etc/X11/xorg.conf --tls=1

I think it shouldn't be the case that TexturedXRender should prevent any user from graphically logging in, aswell as the option is "required" to watch movies/TV on your PC (as I do sometimes).

[lspci]
00:00.0 Host bridge [0600]: Advanced Micro Devices [AMD] RS780 Host Bridge [1022:9600]
     Subsystem: ASRock Incorporation Device [1849:9600]
01:00.0 VGA compatible controller [0300]: ATI Technologies Inc RV770 [Radeon HD 4870] [1002:9440]
     Subsystem: ATI Technologies Inc Device [1002:0502]