problems for installation on a dell e6510

[Eric Doutreleau]

i just receive a dell e6510 today and i m unable to install fedora on it

indeed we installed all our machine through cobbler.
we boot pxe got the the vmlinuz and initrd file but after the installers 
says that there s no network card.
i boot a rescue CD and the rescue CD told me that the card is an intel 
82577LM

Did someone already had some problems with this card?