Problems with ez-ipupdate and zoneedit

[Martin Marques]

I'm experiencing some trouble with a F8 server on a ADSL when trying to 
update the DNS IP definition in zoneedit using ez-ipupdate.

Up until some time last week it was working great, but now I get this in 
my logs:

Jun  2 09:05:33 linus ez-ipupdate[1939]: unknown return code: 301
Jun  2 09:05:33 linus ez-ipupdate[1939]: server response: Moved Permanently
Jun  2 09:05:33 linus ez-ipupdate[1939]: failed to update 
ppp0->190.31.24.47 (www.marquesminen.com.ar)

I understand what the logs mean, but I can't get a clue about how to 
solve it (google hasn't helped me).

Is someone using zoneedit and ez-ipupdate?