Okay, no it gets technical: During another occasion (I rendered the whole thing) I saw the following in the Task Manager: Used RAM about 250MB Used Swap about 1,7 GB I wondered why XP left so much RAM unused (as I said there are 1GB) but used the Swap instead. Is there a trick how I can make XP using the total RAM amount? I quit all other task which were not neccesary.