QT 4.4 runtime error

I am quite new to QT and run for now on the open source version for Windows XP using the MingW32 compiler. I downloaded the latest of everything there is. QT 4.4 compiles 100% perfectly. And everything works, but when I execute anything from QT, like its assistant or designer, anything at all, it works fine, for a few seconds and then comes up with the runtime error box and asks to send a error report to microsoft. With any code I compile of my own it is the same, it runs, and withing a minute or so it just dies on me, even thoughI dont do anything funny.

I then downloaded QT 4.3.4 and compiled it again, with exactly teh same result. Is this likely to be a QT error, or a MingW error or even a Windows XP error, the errors always occur in the QTGUI Dll, and msvcrt. I am at a loss!!!:)

There is nothing wrong with QT 4.4 or MingW or anything realy, the problem turned out to be a faulty ram chip, seems only QT didi something to trigger this. Thank You