I have a usb stick formatted to ext2 hosting the custom firmware. I also have my HDR mounted to the HD and that works fine. I don't have a usb hard drive attached. I was expecting to be able to record to the HD usb stick, but when I press record I just get a blue invalid symbol in the top right of the screen. The same happens in the Guide and if I try a future program the 'Record the whole programme' is greyed out. Is it not possible to record to an ext2 drive? Thanks.