Ubuntu 12.04 64 bit Qt segmentation fault after Update

[gneiss]

Hi,

I am having a similar problem as described in this thread:
http://qt-project.org/forums/viewthread/31865

On Saturday I install some updates. Now QtCreator and programms build with it fail with sigsev.
This happens only on my Host PC. A VM on the same PC, running the same OS (Ubuntu 12.04 LTS) is NOT affected.

Because only on the host the module fglrx was installed (and updated), I assume that is the reason,

A deinstall/reinstall of the QtCreator (Version 3.0, precomiled version) does not solve the problem.
Even a complete fresh install from source (Qt5.2.0 & QtCreator) will still result in a sigsev.

Because all programms using Qt now results in this behaviour (even new versions compiled inside the VM), I assume somthing is broken with in the Qt-Libs.

I am not a linux expert, so please indicate what information is needed to find out the reason.