The way you should setup your network with Klinux nodes, would be to run a Dnet PProxy on your internet connection box.
That way, if your internet connection goes down, you'll still have blocks to crunch.
You can have all your Rc5 clients connecting to your PProxy, and flush/fetch from one spot.
<< Is it crunching the same w/u again? >>
I doubt it, but it is probably crackin a random.
<< if so how can i flush it to get a new one? >>
Hit the "Ctrl Alt F2" keys, like you did before, to go to a different tty term.
Login to that term, and type: cd rc5 that will change your dir, then type: ./dnetc -update
That will flush and fetch new WUs.