Greetings - I was copying some files onto my external WD drive and was surfing while the files were copying. When the copy process ended, I went back to the destination window/folder and clicked the "prev" arrow to jump up a level. Upon doing that, I "lost" the folder I was in - it seems to have dissappeared from Finder? I checked and the storage space seems to still be used on the external drive, but I can't seem to "see" the folder (and all the subfolders/files) in question. I tried ejecting the USB drive and re-mounting it using Disk Utility, and also restarted my MBP - both to no avail Any help or suggestions much appreciated.