I successfully configured an IP address and netmask an all other stuff the first time I ran networkconfig. Later I was curious about some other configurations and started trying different combinations (I was trying to set a DNS server).

After openning and closing networkconfig, changing eth0 configurations every time, the program came up with no configuration for eth0 , but it gets worse, it won't take any config I put in !!. I write an IP address and hit OK going back to the main eth0 screen and the IP address field is empty. The same with netmask and everything else.

I can configure eth0  using ifconfig though, but how could I 'reset' networkconfig without a reinstall of the whole OS??

PS: I already tried a reboot.

Try editing /etc/rcd/rc.inet1.conf by hand. Or try turning dhcp on and off again. This sometimes helps to "reset" the options.

jpf

P.S. Don't reinstall - the problem should be fixed without that much effort.