hey everyone i have some problems that i have never experienced before today after i have had my ibook for 3 months. i cam home after school today and my book had been sleeping all day. i opened the screen the and PW prompt never came up just a black screen. so i shut the monitor again and then the sleep light never came back on. so after staring at the blank black screen and not being able to do anything, i just restarted the ibook by holding down the power button. then when it rebooted it took EXTREMELY long to load. about three minutes. after that no problems until now, i have been on AIM, and it has crashed about 6 times in 30 minutes, it will stay on when im not doing anything but whenever i send 1 im to someone, it crashes. any ideas?