Does anyone know of any free simple LAN chat software? I just finished hooking up the kids' PC to the local network and even though all PC's are within 20 feet from each other, they seem to really get a kick out of chatting. I've tried a few but they either don't work or not simple enough. The kids range from 4 to 12 years so simplicity is key. BTW: Running CAT5, cutting wall plate openings, drilling holes in the floor behind the wall and hooking up the jacks is a pain in the @$$, but now that it's done, it looks and works sweet.