White screen displayed

I have dual boot system with Windows xp-SP2 and openSUSE11 with GNOME.I tried to install ATI drivers from this site using 1-click install.By that I downloaded ati.ymp which I installed using Yast Package handler.While Installation was in progress I aborted it because of less speed of downloading and restart the system.But now white coloured screen appear after openSUSE11 started.When I clicked mouse blindly any where on desktop banshee player started.Thus I think my display drivers crashed.What Should I do now? My important data also there.Please suggest some way to get back previous settings.

Have a read here
ATI - openSUSE

Also try to reconfigure your videocard. Some hints in this post here.

You may need to finish the install of the drivers if sax2 configuration will fail.

Good luck.

I have tried all the suggested steps then also my problem remained unsolved.I have openSUSE11 bootable DVD,will this be useful to correct ATI drivers problem.I dont want to re-install openSUSE.Please help me!

What about this section of the page I linked you to:

White screen after login

Be sure that you have PCI: prepended to the BusID string in /etc/X11/xorg.conf. For example:
Section “Device”
Identifier “Device[0]”
Driver “fglrx”
BusID “PCI:1:0:0”

I don’t know how to see that.Please give me steps to see PCI information.