Need help with Xgraphics Error and XEngine Log

Hi Carl,thanks for your answer. I think I fulfill all of your prerequisites: full network access to all mentioned folders for ASX and XG and full administrator rights under Vista without UAC on either PC. I already did several uninstalls and re-installs.But nevertheless I try to clean everything again and make a fresh install as you supposed in the next days. I will report to you as soon as I'm done with it.Thanks again.Christian