i was wondering if anyone knew anything about screen spanning hacks for ibooks. i was looking into it but found a lot of people saying it could potentially harm your computer. is there any truth to this and also does anyone know if there is a good place to download these programs from or any certain hack to get? any help would be awesome.

ps. if it helps i have a 1.42 ghz g4 with a mobility radeon 9550 with 32 mb vram