I had Ubuntu installed on my Macbook and I decided I no longer want it because I never use it. So I erased the Ubuntu partition and the swap partition with disk utility. So they now contain no data and show up on my desktop as Mac drives. But I want to completely delete these partitions and merge them back with the OS X partition. When I try to delete them on Disk Utility, the Swap partition appears to have been deleted. But if I close Disk Utility and re-open it, the partition is not actually gone. The Ubuntu partition just hangs at "Preparing to remove partition" and never does anything. Any help? I would really prefer to avoid the command line. I am familiar with the command line but I don't feel safe using it on something like this...don't want to type something wrong and wipe the hard drive.