I recently got ThomsonSpeedtouch 780WL(i) router D-link dwl g-122 usb adapter and i'm having some problems with playing games online. download and upload speeds are fine, as expected, but playing anything online is much worse than wired. i get heavy lags (4-5 sec) every 2 or 3 minutes. can this be solved by replacing usb adapter with a better one? or any other way to make wireless gaming better?