G5 ethernet died

Hi everyone,
I had a system crash on my G5 at work (the kind where lines of code appear over the desktop), but this time when i rebooted my ethernet connection doesn't work at all. I tried plugging it in to other ethernet outlets but still nothing works. Seems to me it somehow fried it, is there any way to confirm one way or the other. In network settings it just says that there is no cable connected to it.
I'm using os x 10.5.2 on G5 dual 2ghz (4gb sdram), and the crash happened when i was using photoshop cs 3.
anyone know any magic spells to fix this?
Thank you!

I would try first, resetting the PRAM
http://docs.info.apple.com/article.html?artnum=2238
and if that does not work, resetting the PMU
http://docs.info.apple.com/article.html?artnum=86760

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