**Have solved my problem withAeor lag.**Reinstall Windows 7 U64 twice with new/old driver.
Replaced Gforce 8800GTX with Gforce GTX480.
Have spent many days on this problem without a solution.
But here is a very simple solution that works for me.
I removed the USB extension cablefor my CreativeHS-1200WirelessUSB Gaming Headset.
Aero lags when Iused USB extension cable and headset charging.
Without USB extension cable, everything is fine.
So it think itis a voltagedrop in the USB extension cable,causes the system to lag. ?
Hope it can help.
Sincerely,
Dennis Psilander