Whenever we try and copy files from os x to a pc (win xp) we always get additional files that are named the same thing, except with a ._ at the beginning of it, and it is ghosted out. So if i copy a file named "1.jpg" from a mac over to the pc, there looks like there is two files, "1.jpg" and "._1.jpg". The ._ files are useless to the pc. As there any way to stop this?