AC not present?

[Bastien]

Hi all,

I just upgraded a XO from 656 to 711 using a USB key (fs.zip +
os711.img + G1G1 activity pack).  The upgrade went fine but the 
computer won't boot and bites like that:

,----
| Got firmware version: CL1 Q2E12 Q2E
| Checking integrity...
| Updating firmware
| AC not present
`----

Any help would be *much* appreciated as I promised to send this
computer to a professional translator for reviewing the kreyol 
translation...

Thanks!

-- 
Bastien