seeing as OpenSUSE 11.3 is unsupported
( it went End of Life in Jan 2012) and so is 11.4 and 12.1
it is time to upgrade to openSUSE 12.3
see the opensuse "lifetime" page
http://en.opensuse.org/Lifetime
seeing as a new normal user is working
it sounds like bad config files in that home folder
the cause can be any of many things , even a bad disk sector .
start with renaming the ( old user ) ~.kde4 (/home/YourUserName/.kde4) folder to to .kde4.backup
then log out and log back in