I use ubuntu 10.04.
downloaded driver for the above mentioned gigabyte lan from intel website - though the DVD that came with the mobo had the driver but that did not work.
e1000e - that did the trick. chk the ubuntuforums for further detail.
I am not able to install the lan drivers of DH61WW in my system its os is ubuntu 10.04 LTS. Wht to do please tell me