hello once again, I´m sending the print screen of my configuration such as the result of ussing snoopy pro hope you can help me finding what I have missed. I´m also sending to you as you asked for my .bas file so you can try it the only changes I made were on the LCD configuration, wich by now is working and it only displays "USB Demo1." when I conect the USB cable, I alredy Cheked my usb cable and everything is ok. so still I´m in trouble... thanks for your help