The company i work for owns a PM570L and a PM460. The PM460 recently came from service repairs and it has a problem that me and the technicians at Zevatech AG are trying to solve but i would like to hear from anyone with experience on this machine. I am unable to access the production software; once i start the machine, i have to run the program on the dos root and when i type the .exe file and press enter i get this error message "ERROR! CHECK PWB OR CONNECTORS". Now, i already checked the I/O board for faulty connections and everything looks in place; so do the expansion boards inside the PC. Did this happen to anyone who ever used this machine?