Ralink RT2561/RT61: Network is down

[Gabrielle Chatelet <gachatelet@free.fr>]

Hello:
I tried to get my RaLink working using the driver from SourgeForge. When 
dtarting I get the following:

Listening on LPF/ra0/00:13:46:8a:ab:09
Sending on   LPF/ra0/00:13:46:8a:ab:09
Sending on   Socket/fallback/fallback-net
DHCPDISCOVER on ra0 to 255.255.255.255 port 67 interval 6
receive_packet failed on ra0: Network is down

Now I tried:

modinfo rt61
filename:       /lib/modules/2.6.18-1-k7/extra/rt61.ko
author:         http://rt2x00.serialmonkey.com
description:    Ralink RT61 802.11abg WLAN Driver 1.1.0 BETA1 2006/06/18
license:        GPL
vermagic:       2.6.18-1-k7 SMP mod_unload K7 REGPARM gcc-4.1
depends:
alias:          pci:v00001814d00000301sv*sd*bc*sc*i*
alias:          pci:v00001814d00000302sv*sd*bc*sc*i*
alias:          pci:v00001814d00000401sv*sd*bc*sc*i*
parm:           ifname:Network device name (default ra%d) (charp)
parm:           debug:Enable level: accepted values: 1 to switch debug 
on, 0 to switch debug off. (int)

But:

dmesg | grep ra0
ra0 (WE) : Driver using old /proc/net/wireless support, please fix driver !
ra0: no IPv6 routers present

I am at lost from there. Can someone help? Thank you
Thierry