rawhide (2006-01-05) install report

[dragoran]

I installed rawhide today (using raid0 this time with no problems)
install went fine no errors,slowdowns etc..
reboot
firstboot no problems (just could not select 1280x1024) as resultion...
after booting tryed to change it to 1280x1024 using xorg.conf but it 
gets ignored
why? 
I added "1280x1024"  but it does not work... I thought that I am stupid 
and forgot to save the changes to the file but they got saved..
is this a known bug ? or should I fill it?
everything else works well ;)