that will give you a new kde4 settings folder - *username = must put your username.
you can do the same with mozilla
mv /home/*username/.mozilla .mozillaold
this will start a new mozilla settings - you can pick up your bookmarks from the .mozillaold folder
Slightly odd - Is you say you were kde4.0 (so is this OS 11.0)
In Yast Software Management if you filter by repo and select the new kde4 factory repo, see if there are blue (or maybe red) packages. If only blue - do update all in this list if New avail
If red there too, do update all unconditionally.
I gave up in the end. I have two disks which have a boot capability. I Booted up the 10.3 disk moved all of my 11.0 files onto that disk.
I then re-installed 11.1 (from the current LINUX magazine) which works Fine! needless to say I did NOT update to kde 4.2. There are too many worrying dependency issues.
I am now happy on KDE 4.1 with 11.1
I have moved all of my files back and everything OK.
Now that I have a working KDE I realise I was on some strange hybrid that was doomed to failure.