dynamic network.

Hi. I have just changed my system from static to dynamic network here. At the present my Linux is SuSE 7.2. I have commented all lines in the /etc/hosts file, but every time I after run SuSEconfig, the 127.0.0.2 appears every time. I have changed the network to dynamic using the Yast2. What can possible be the culprit here ?. TIA Erik Jakobsen