When I run some complicated stuff at the same time in FS9 the whole system would have around 50MB of free physical ram left and HD starts to work really hard. (I have 1GB of ram with AMD64 3200+ and 7800GT, My computer has FSGS tweak and FSautostart and anything that's not critical to system is shutoff when running FS9)Does that mean the system can use some more ram? When does windows actually start using virtual memory heavily? When the free physical memory is quote to quote at zero or when there is still a little bit left?I'm just wondering in my case, can I say "Oh it's definitely not the ram since I still have 50MB free physical ram left".Ideas appreciated.Jason Zhang

when there is a little bit left.. it varies. ~20mb free you can expect some page file usage