Hm, I'm not sure if it about monitor or not but when I play CS1.6, I try test turn back from flash but still fully white like 1.5 seconds (delay I think), maybe because of its monitor ms or monitor setting. Like my samsung monitor at home 2ms, won't get flash fully white screen no matter how many flash you kena as long you turn back. But I see the PC spec pretty good one. Maybe Mattshim can explain this in details or any IT pro out there. I'm not good in IT stuff