Update Info: I have two (2) PC/104 cards running, I think, under LINUX 2.4.18. I have the DDK kit and have a TAR ball of IBCHAT program which Bangs away on the GPIB bus between two diffent cards, ie. devices. I have one PC/104 chatting with the other, in two seperate processes. But the displays are very confussing.. and NO docs as to "How to Run this program". Sure, there is a "-h" option, but not very helpful.. Some enlighten by the NI folks would be helpful!!(Hint..Hint..) Unless they have that LOCKED up too!! (so much for GPL)