Matsuura MV 1000 (1981)w/ Yasnac 3000G w/crt. control. A BTR, that worked a few years ago, was installed before I got it, I bought the software (Shoplink) but can't get it to work. It seems like it is only able to read one character at a time, whether sending, or receiving a program. Is there a special prefix I need to start the program with, I've tried O and % , neither worked. Thanks in advance for the help.