Sorry Stefan but I'm really calm. For the moment the one on my web server is ...

Sorry Stefan but I'm really calm. For the moment the one on my web server is doing fine it's working. However it's the one on my local machines, thank you for mentioning the GD 2 libraries. I read somewhere that is not really stable and it might cause some problems every now and then. I didn't touch anything on my XAMPP bundle but I believe it must be my computer and do you know where I can find some info on GD 2 (I don't think I have imagemagick).