Hey guys, I deleted my whole op25. checked out a new one. applied Balint's patch, made some simple changes to the hdu.cc ldu1.cc ldu2.cc and tdu.cc files, and built with no errors at all. the changes i made: string hdu::duid_str() const { cout << "HDU"; return string("HDU"); } string ldu1::duid_str() const { return string("LDU1"); cout << "LDU1"; } string ldu2::duid_str() const { cout << "LDU2"; return string("LDU2"); } string tdu::duid_str() const { cout << "TDU"; return string("TDU"); } all i get in terminal when i hear the noise is a few HDUs. No LDU1s or any of the others. There should be like 400 "TDU's. I have been unable to figure what i am doing wrong. Any guidance will be very much appreciated. Thanks. -- ------ Matt D ------------