Frank, Last evening I was contacted by someone else that has had this same issue on a 4694-245 box and they have tracked down the problem to a change in the pci bridge irq code. See the following article for more details. http://lwn.net/Articles/38879/ The problem appears to be outside the pcnet32 driver. I don't know any more than this. -- Don Fry brazilnut@xxxxxxxxxx - : send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html