hookamenace

Hi, I have a Macbookpro with OS X 10.6.8. For the past 2 months I have had internet browsing issues where a webpage would show cannot open because "Safari cannot find the server". I would wait for about a minute and refresh and the webpage would be there no problems. It is doing the same thing on firefox as well. Everything is up to date for software. The only thing I can think of was that I installed windows on my MAC and that I moved from california to kansas (thought I go back and forth all the time with no problems). Also, my brother who has a Mac does not have this problem. Last thing, when I am on hulu, it doesn't have that problem. Instead it just shows something about not being able to play the video and to clear my cache, which of course I do and nothing happens. If anyone has any ideas that would be great, THANKS.