Problem trying to preseed netcfg/no_interfaces

["fiolorlando@cantv.net" <fiolorlando@cantv.net>]

Im trying to preseed the  NIC detection and configuration. It works
with this preseed:

d-i ethdetect/module_select select no ethernet
card
d-i netcfg/disable_dhcp boolean true
d-i netcfg/use_dhcp boolean
false
d-i netcfg/dhcp_options select "Do not configure the network at this
time"
d-i ethdetect/use_firewire_ethernet boolean false
d-i
hw-detect/load_floppy boolean false

but I can't skip the
no_interfaces error. I already tried to avoid it with:

d-i netcfg/no_interfaces boolean false
d-i netcfg/no_interfaces
string No

with no success. Any idea of what Im doing
wrong?

Thanks