Thanks again Wysota.
I configured Qt with the switches -platform win32-msvc2005 before compilation.
So recompiling won't make a difference I've tried before.

I wonder why you say I'm trying to use the MingGW installation, first time I installed Qt it installed MingGW as well and worked fine with MSVC.

Besides re-compiling can you think of any other solution maybe?
Does open source Qt only work with MingGW?
I honestly can't get into Qt since I cannot QtCreator to work.

Very frustrating.