Hi all. I have a new problem. My GT5 usb stick messed up. It always worked perfectly fine, but since a few hours ago it started to say this when I put it in the laptop: "The disk you inserted was not readable by this computer." I can only select "Initialize"... or "Ignore" or "Eject"... Basically what I get from our great source "the Internet", my usb stick got corrupted... When I look on videos or other forum post they just tell me to go in "Disk utility" and just repair it or reformat it. But my mac won't let me! When I click on the usb disk in "Disk utility" It won't let me click "repair" or "verify" and when I try to erase it it says: "Disk erase failed Disk Erase failed with the error: Unable to write to the last block of the device" So what now?