Iv had this problem for a month now, I will try to explain... everytime I am home, trying to use the macbook (white 13in) it freezes and doesnt get past the galaxy page sometimes, then i restart it, goes to the desktop. I then want to click on internet or an application and it freezes with the spinning wheel. I have taken it the apple store and Wa la! it works in the store. It allowed me to get on the internet, do everything. So, it thought coincidence. Long story short I took my macbook to my house and back to the store to test it at least 3 times. Every time is has worked perfectly in the store, not functional in my home. I have now changed the battery and the cable. I have also tried to use the computer and internet at work and school which also works fine. In conclusion my computer does not function at my house, I have internet there but it does not let me access the desktop nor any applications. Weird. Help. Thank you!