I am changin my iBook G4s hard drive. I am referring to a well written guide published on http://www.faqintosh.com/risorse/en/guides/hw/ibook/g4hd/ . But I am stuck on a step. For removing the front panel, there is screw hidden under a magnet. Somehow I can not remove that magnet. I have tried using L end keys, screw drivers, nose pliers and even a powerful magnet. This disk would not come out!!!!! Please help! Thanks in advance!