Same problem here under 10.04.3
Solved by creating a new fat32 partition using fdisk then running usb-creator-gtk through alt+f2.
After that, from usb-creator-gtk, erased the usb-stick which created a new partition on the stick and everything went okay from there.
Same problem here under 10.04.3
Solved by creating a new fat32 partition using fdisk then running usb-creator-gtk through alt+f2.
After that, from usb-creator-gtk, erased the usb-stick which created a new partition on the stick and everything went okay from there.