hi everybody,
as the screen was staying like there permanently, I am gone to bed.

but I have been anxious all the night too

and this morning, my ipod was lighted off.
So I have tried to push select + play 6 secondes to go on hard disk (this manipulation haven't worked yesterday when i had the white screen).
It have worked!!! so I go on command with my computer , and i have applied ipodpatcher -w N bootpartition.bin.
And now it is desinstalled , ouf!!!!!!!!!!!!!.
I don't know if one day i will try again rockbox, i was seeing me going to Darty for change my Ipod (only one week i have it).
For information, here was my method, perhaps you will see something wrong:
1) First method: I have tried rockbox installer :
http://www.ipodwizard.net/showthread.php?t=15153but it was noting "no disk found"
so i tried the 2nd method
2)second method:
- i have downloaded rockbox.zip
http://www.rockbox.org/cvs.shtml-i extract it in ipod
-in c:\rockbox I have putted : ipod_fw.exe
http://download.rockbox.org/bootloader/ipod/ipod_fw.exeipodpatcher.exe
http://download.rockbox.org/bootloader/ipod/ipodpatcher.exebootloader-video.bin
http://download.rockbox.org/bootloader/ipod/bootloader-video.binIn c:\rockbox :ipodpatcher 0
ipodpatcher 1
ipodpatcher 2
ipodpatcher 3
(etc)
the 1 was OK.
then :ipodpatcher -r 1 bootpartition.bin
ipod_fw -o apple_os.bin -e 0 bootpartition.bin
ipod_fw -o apple_sw_5g_rcsc.bin -e 1 bootpartition.bin
ipod_fw -g video -o rockboot.bin -i apple_os.bin bootloader-video.bin
ipodpatcher -w 1 rockboot.bin
then i putt off USB
then there was white screen with rockbox bootloader
version.....
Ipod version.....
Toshiba....
No partition found
Partition 1 : 0*0B 7130Mb
Loading rockbox....
(I forgot excatly)
If "Menu+Select" 6 seconds , then "Menu"
version.....
Ipod version.....
Toshiba....
No partition found
Partition 1 : 0*0B 7130Mb
Loading original firmware....
but after reboot on :
version.....
Ipod version.....
Toshiba....
No partition found
Partition 1 : 0*0B 7130Mb
Loading rockbox....
DO you see something wrong?