recently i have install licensed windows 7 in HP dv5,my internet connection speed is 256kps.after install windows 7 in laptop my download speed keeps on fluctuate.if im not wrong my download speed should be in between 20-30kps,but in windows 7(in my laptop) in keeps on fluctuate from 25-3kps,means my download speed keeps on falling upto 2kps from 25kps,why is that?,but in my desktop with windows xp download speed is good is between 22-30kps,there is no fluctuate,what is the reason of fluctuating in windows 7