WinCe dont boot from nand

Fernando
I already searched this forum and internet, but i cant get to boot from
nand flash the wince... i install it (first format, then nboot, then
nkbin)... it runs ok after this, but if I change the S2 switch to boot from
nand I get a white screen with random lines... if I go back S2 to boot from
nor, I see the menu (I have supervivi V2 already), and with b option WinCe
boots...

what can be the problem? I see some posts with this problem, but no
solution...

thank you all
(excuse my not so good english)

BE_one
- You need to update the bootloader, then it will work.

Edje11
http://www.domodom.fr/spip/Mise-a-jour-du-bootloader.html