So I have a 2.0ghz unibody macbook, and it seems when I am surfing the internet, suddenly pages don't load.. So i'll be browsing and it works fine, but then suddenly things stop loading, and I have to close the browser and re-open it. It isnt a problem from my router or internet connection because it works with all my pc's around the house.. any solutions or tips I can do? All this time the wireless bars remain the same, so its not completely disconnecting.. the issue is intermittent and doesn't always happen.. another issue i'm having is that i keep getting the beach ball of doom when im surfing in safari, i get it like every few seconds - minutes and it lasts for like 10-15 seconds each time