Hi, I recently bought myself an Xtra monitor to hook up to my Ibook. I also used the hack to be able to split up the monitors to have full resolution of my new monitor. but now my computer is running slower. somewhere in this forum I have found out that because of the hack my Ibook now has to work extra hard to be able to run on 2 monitors. my question is, isn't there a way to be able to use my new monitor at full resolution and just shut of the original Ibook monitor? so my Ibook does not have to split up his memory? If I mirror them I Can't work on full resolution ... somebody doing this? Or... What do I do/buy/download that my Ibook can work on 2 monitors, but doesn't run slower.