I'm now using the last version that nicolai has posted and everything works just fine. Thanks for your help.

The only problems I have now is my limited knowlage about * and & symbols before variables. so I have to deal with several "can not convert int* to int" errors..

Maybe someone could post a little summary about the meaning of int i, int *i and int &i. And why my compiler forbids me to do the following:

QDateTime *time;
time = QDateTime::currentDateTime();