realtek rl0 not working with dchp

[arden]

hi folks 

Im setting up an extra box on my home dchp network to use as an internet
station it just will not pick up an ip address by dchp even when nothing
else is on the network i can manually assign an ip with ifconfig so 

pretty sure its detected ok also tried 3 different linux distros and get
the same prob with this card 

the case is compact (built into the monitor) so a different nic is not
an option 

Arden