Comment 1 for bug 634636

Same here. I think problem is with access rights. Many of "new staff" downloads needs to be extracted to /usr, but there is no "kdesu" dialog. In my case, only downloads which are extracted to my profile are working. Others are marked as installed, but downloaded archive is not extracted ...

Example of not functional "new stuff": dolphin servicemenu rootactions.
Example of functional: color profiles