Ok... Test 1: test 2: Settings: System: Win XP, SP 3 Core 2 Duo- 2,4 GHz (E4600), 775 socket Geforce 7600 GS, 256 MB 2 GB DDR2 RAM, Singlechannel The strange thing is that on my Pc I get most of the time only 60 (closed rooms), 30 or 20 fps (open rooms/outsides) fix, really rare if i get like 25 or 35 O.o