Thanks a lot !!!!! With all the new knowledge I got today, I think I'm going to change my PIC-stuff and my computer for a couple of cows (better, a cow and a bull, so I have some hope for "automatic" future expansion - maybe even I can put a PIC in a future automatic milk-machine)...... Perhaps there's somebody on the list who wants to exchange electronic stuff and a computer for said animals, please drop me an e-mail..... Regards, Albert Smulders InSAD (will be very soon: Establecimiento Ganadero PIC) Encarnaci—n, Paraguay insad@itacom.com.py (will be: muuuh@itacom.com.py)