Can I just drag apps from one drive to another and they will still work? How reliable is this? I tried moving an app to my external drive (the 160gb on this new MBP sure filled up quickly) - when I run it from the external drive it has a window: 'Application Has Moved' and allows me to 'Repair Now'. The app runs fine after repair, but the next time I run it it keeps popping up with the same window. I am thinking I will have to reinstall - but I thought that Mac's were capable of this? Maybe just certain apps?