Hi all. What a frustrating past few hours its been! To sum up: My External HD is seemingly corrupt, so corrupt i can't even format it. The big explanation: I had an External HD that i used for backing up my files, however, i didn't do it through time machine, i just did it manually. However, i decided today that i would use time machine. So I formatted my hard drive, and put it into 2 partitions, one larger one and one smaller one. The larger one was for time machine, the smaller one was for continuing to do my manual backups. Hours later it was all fine, used time machine for the first time and felt so secure. However, after using time machine and seeing what its all about, i no longer saw a point to having a second partition for manually backed up data. Manually backing up stuff just defeats the point of time machine doesn't it? So, I thought that since i'd only got one backup i would just format the HD once again and partition it into one big drive, purely for time machine. What i did: I entered disk utility and clicked on the name of my external HD, then selected the 'partition' tab. From there I selected 'one partition' from the drop down menu. Then I named my new partition 'Time Machine' and selected 'apply.' It told me that it'd erase the 2 partitions i already had and that was fine with me. I hit ok. It begins to partition and after a few seconds I get an error saying something like 'File Formatting failed' So I try again, and its the same. So, I try to erase everything on the disk, but i can't because i get the same error, and now nearly every command i try to do on it ends in an error. So it seems to me like i have a wrecked external hard drive, and I can't format it either. I'm betting any money i've done something so wrong, because while i am good on the Mac itself, all this hard drive business always ends up going wrong because of some option i haven't clicked.