Hi guys!

I just want to raise an issue regarding Qt 5.0.1. Currently, I upgrade my Qt from 4.8 to 5.0 version. I have encountered several times during build/rebuild, clean, run qmake and cancel during building the application went to "not responding" or "has stopped working". Yet if i keep retrying those functions, eventually it proceeds. These behavior was seldom encountered in the previous version. I hope these would be addressed to prevent hassle on the developers side.

Thanks!