Help with software manager

Hi there.
I installed openSUSE 13.1 a couple of hours ago and I’m facing a bit of a problem. The software manager in YaST won’t open because of a missing qt plugin.
I tried what was suggested in a similar case for 12.3 but it didn’t work. I can see that the suggested packages are installed (libyui etc) so I can’t figure out what else to do.
Any help appreciated.

Install the package “libyui-qt-pkg5”:

sudo zypper in libyui-qt-pkg5

Probably you only have the old libyui-qt-pkg4 (from 12.3) installed.

If that doesn’t help, please post the exact error message.