I personally have no idea why, I have 2 macs 1 a 28 inch macbook and an iMac, also I have an iPod, IPhone and iPod Touch and theres always something weird. Anyway, Limewire is not a good choice, my friend almost went to jail for downloading it because 1 day she got a message saying to erase it to avoid any problems with the police, she did not listen and she not only got her computer tooken away, but she got a $89 fine for ILLEGALLY downloading free music. It may say it's legal but it is NOT.