Hi, > Is there something in qt 4 you ESPECIALLY need? I think most people > only have qt3 yes, I used it with reason :) . One important thing was better support for multithreading. Furthermore: I know at the moment most people have Qt3 installed. But this will change *very* soon as KDE 4 gets released this summer. Then many people would ask me to port to Qt4. And this would have been *lots* of work due to heavy changes from Qt3 to Qt4. So, is it a problem to install Qt4 besides Qt3? ON Gentoo, it works perfectly. Best regards ce