I recently bought the 500gb time machine for my Macbook Pro. I set it up as the instructions described, it backed the hardrive very slowly at first then i decided to put it back in the box for a little bit. I took it out yesterday and connected to it via air port, i could see all the backed up files and everything. When i clicked backup now, it stayed on preparing to backup for over 5 hours and never stopped. I figured maybe it could be the wireless connection so i move it right next to my laptop but still nothing. Does anyone have any ideas what could be going on? Thanks