Lately, our internet has been really slow, and my Mac is causing it. When I get on Wi-Fi, it's really fast for the first few minutes, then gradually gets slower, as does everyone else's wi-fi for their computers or iPhones. We've replaced our modem and router, but that's it. MacBook Pro OS X 10.8 15 inch 2 GHz Intel Core i7 processor 4 GB 1333 MHz DDR3 memory Oh, and I kind of guessed what information you guys need. Just say the word if it isn't enough. I'm a newb here.