Basically I just got myself the latest MacBook as an upgrade from an old laptop. With my old laptop I had no problems what so ever when using my external hard drive. To delete any files I didn't want I would just right click and press the delete option. However, when connected to my new Mac, there is no such option when right clicking on a file. I've tried dragging the file to a recycling bin but I get a message from the finder saying this file can't be deleted. I've tried moving the file out of my hard drive which worked and then deleting it which was fine but the file remained in the external hard drive as I'd only created a copy. I can't figure out how to delete files I don't want. Deleting everything on the hard drive is out of the question. Any help would be greatly appreciated. Thank You. Ross.