Bug#241943: impossible to correct an error in net modules config

[sylvain ferriol <sylvain.ferriol@imag.fr>]

Package: ethdetect
Version: 0.81

when configuring net modules parameters, if we 've made a mistake and 
the modprobe is ok.
it is impossible to go back  and  correct module parameters (unless you 
are in expert mode).
you are always directed to the dhcp network config.

sylvain