Network goes down in flames

Hi, I have a network set up with a SuSE 7.3 and a SuSE 8.1 machine. Nothing special out of the box stuff connected by Ethernet. I am using the 8.1 machine as a print server. The 7.3 machine is printing to a Laserprinter connected to the 8.1 machine. Printer is called remote on the 7.1 machine. I am printing using samba. I used YaST to set everything up. Problem is, when I print over the network, the 8.1 machine crashes and reboots. Any clues? Thanks. +-------------------------------+-------------------------------------+