MBP hangs when booting with network plugged in

My macbook pro (just got it last week) seems to be hanging whenever the wired network is plugged in.
as soon as i pull the network jack out, the MBP finishes booting into OSX. any ideas? is the network controller busted maybe?

Hi brinox;
May I welcome you to the Apple Discussion Forums.
Before jumping to that drastic of a solution for your problem, I would like to ask if you have go into System Preferences and made sure the hard drive is your boot device in Startup Disk. It is possible it is pointing at the network and with nothing plugged in that fails. Please give that a try and let us know the results.
Allan

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