Lab configuration script and service config

Hi,
has anybody seen "service config" reappearing by itself ?
I'm trying to solve an issue where a script that is applying
configuration to a router gets confused because of interleaved
"%Error opening tftp://255.255.255.255/HQ-2-confg (Timed out)"
messages.

I'm doing "no service config" and "no logging console" right away,
but the messages keep showing up.

Any clues ?
-Carlos

-- 
Carlos G Mendioroz  <tron_at_huapi.ba.ar>  LW7 EQI  Argentina
Blogs and organic groups at http://www.ccie.net