my xbox360 wireless controller always flashing circulating light spinning around when i play games(like every 7-10 minutes exspecially playing sf4), the think is when it is flashing my controller seems still functioning altough i will pause the game and wait for few second for it to become normal(back to 1 light). but i can't ignore it cause i think there maybe something wrong for it to flash like that.anyone have any idea whats going on?