@ JCL

I have scanned my PC with 2 different virus scanner and both had no virus detected. Both are uptodate (today´s update).
I have also reinstalled GS in a new file, also on another Harddrivedisk and also i have formated and installed my windows for three times (installed GS as last software, installed before installing all drivers, and installed behind drivers). And like i said, i have manualy installed the drivers like them before the WINXP reinstall.
Only thing i have not made was a memory check. But it is also the same like before.
I have GS now also installed many times at my notebook and there is no error. I hope that this is only a minimal conflict on my system because at the moment i think it might be an error from a windows update.