When I insert a usb stick into my laptop running ubuntu 8.0.4 I get the error message:
"Cannot mount volume.
Invalid mount option when attempting to mount the volume"
The same usb stick works find when I connect it to another windows box. I ran a chkdsk /f on it and got no error messages.
It's also not a hardware issue with the laptop since the same usb ports work fine when I boot it until windows (dual boot machine).