Trying to be a good auntie, I recently installed a new 40 gb hard drive into my niece's older 500 mhz 12 " white ibook w/ Combo drive. Formatted new hd, installed OS 10.3.6, many applications (CS2, Office) and all work great--until I tried to burn a cd for her. Blank CD would not mount on desktop and got message that "OSX could not use the disk--did I want to ignore or cancel." Tried various types blank disks. Then I wondered if a need to install a driver? Apple Support site light on the subject. Do I need to go back to old system disk (OSX) and find a driver?