I'm not certain if this is the right place to post, but I have a question. We just got cable internet, speeds up to 12 mbps. When I first turn the computer on, I will check the speed through an online checker, and it will show up to 30 mbps. WOW. Here is the stinker. If I run a torrent program for several hours, then shut that program completely down, the speed checker will show only 2 or 3 mbps. Now, if I restart the system, the speed will jump back up to 30 mbps... Is this common, and if so, why?