I searched MRoogle and couldn't find a similar issue. My connection speed and signal are great on my base 15" MBP, but as I navigate to different pages, I keep getting the 'loading and spinning disc' dialogue in the address bar in Safari. I don't have any issues with my wired connection on my iMac. I have a ~3.5 year old Netgear G router with MIMO and it has always been fine. I have to click the X and then the reload arrow in order for the pages to load on almost every other page I go to. Then the page loads almost instantaneously. Is there something in the network settings that could be causing this? I really don't want to take it to the nearest apple store @ 2 hrs away and I'm not ready to buy another router to 'try' it out and see if that fixes the issue. Any suggestions?