Ok here's my problem, since one month i've been experiencing slow browsing speeds and drops in downloading and streaming speeds. I can't load a youtube vid without buffering and my internet speed is 2mbps

, takes about 10-12 seconds to load google. Before i was able to load a youtube very quickly and it buffered real quick allowing me constant play, and google opened up in 1-2 seconds. I've scanned my computer with kaspersky 2009 version, superantispyware, spybot and so on. But still the browsing is slow. When i test my speeds i get the correct upload and download speeds. And when i am downloading it downloads at 250KBps-260KBps but sometimes drops to between 100KBps-30KB sometimes it goes even lower

. So can someone pls help me out, i would really appreciate it.