My mb often gets the little rainbow beachball symbol and it will not go away no matter how long you wait. I often have to press and hold the power button to turn it off and then turn it back on again. I know this is pretty bad for the computer but there is no other alternative. It usually does this when im saving a document on microsoft word mac students version, when i am trying to sign on ichat, or when i am just surfing the internet. I am not running any huge programs, and the only saved files i really have are mp3s and word documents. Its really annoying and i know that it is harmful to the mac. Any tips? I am the same person whose laptop and remote messed eachother up, so i may be able to get a new one anyway, but i dont think its likely.