11.2: KDE Apps Excruciatingly Slow after upgrade

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http://forums.opensuse.org – Hi! I've just upgraded from 11.1 to 11.2. My KDE apps (Firefox, Yast, Kmail) are now excruciatingly slow - particularly Kmail which is now virtually unusable. Before the upgrade on my 3GB RAM laptop the response was great - so something has broken during the upgrade process. What is interesting is when I open in Failsafe - the speed is fine. My thoughts are maybe graphics card acceleration but why would it be ok in failsafe? Not really sure where to start looking here. Any help greatly appreciated. (Distributions)