KDE Fail start

Hello all.
I have trouble with my OpenSuse 11.1 box. Some time my KDE 4 work successfully. After reboot, my KDE not automatically start.
Browse my /var/log/Xorg.o.log I see that error with glx module. I try comment in /etc/X11/xorg.conf load glx, but problem remain.
I also try use default xorg.conf

Xorg -configure
cp /root/xorg.conf.new /etc/X11/xorg.conf

Test Xorg -config /etc/X11/xorg.conf succesfully. No error in /var/log/Xorg.o.log.
I try run startkde, but I get error that could’t connect to my X server or $DESKTOP not set. Then I create /root/.xinitrc and add line ‘exec startkde’. Run command startx, X shell start and I see that ‘kstartupconfig4 does not exist or fails’. In shell I see this errors:

/usr/bin/kde4-config: symbol lookup error: /usr/lib/libQtNetwork.so.4: undefined symbol: _ZN14Q...
/usr/bin/kde4-migrate: symbol lookup error: /usr/bin/kde4-migrate: undefined symbol: _ZN9QL...
kstartupconfig4: symbol lookup error: /usr/lib/libQtNetwork.so.4: undefined symbol: _ZN14Object

What’s this a how I may find solution?
Thank all.

Boot to level3
login - then go su

start yast with: yast

Start Software Management and filter by repo, select ‘System’ and Try to do unconditional update of all packages.

Did you update Xorg packages? If yes, then a reinstall of NVidia or ATI driver could solve your problem.

No, i don’t update any packages.