Bug can be viewed in the untouched imageviewr example.
Compiling works fine. After starting the debug compiled example, one gets the following errormessage twice

QWin32PrintEngine::initialize: GetPrinter failed ()

This 2 error messages appear really slow (first after ~22s, 2nd at 44s on my VM windows xp). After this 2 errors, the imageviewer application starts. It turns out that this errormessage occurs every time one creates a QPrintDialog.

Dont't know if its just a wrong compiler setup or a real bug.