I'm trying to upgrade my N800 via my linux desktop (ubuntu feisty), and the flasher is dumping me back to the shell prompt without doing anything. Any ideas where I'm going wrong??

root@mediumspicy:/home/bklaas# ./flasher-3.0 RX-34_2007SE_3.2007.10-7_PR_COMBINED_MR0_ARM.bin -f -R
flasher v0.8.7 (Oct 17 2006)

Suitable USB device not found, waiting

[ here's where I plugin the N800 and see it power up with the usb icon ]

USB device found found at bus 005, device address 064
Found device RX-34, hardware revision 1301
NOLO version 1.1.3
Version of 'sw-release': <no version>
root@mediumspicy:/home/bklaas#

the output looks like what you'd expect, but after the "Version of 'sw-release' line, instead of seeing something like this--
Sending kernel image (1236 kB)...
100% (1236 of 1236 kB, avg. 813 kB/s)
Flashing kernel... done.

it just sends me back to the prompt...

I'm connecting the USB directly to the PC (no hub).

any insight much appreciated.
cheers,
#!/ben