Running DW4.3 on a Linux box and testing with my CoCo 1 and hdbcc1.wav. I get nothing but I/O errors on DIR, and in the server log I get "UNKNOWN OPCODE: 194" Maybe it's a apeed mismatch? What speed is the CoCo sending bytes at? I set the server to 38400 (the installation default) and 115200 and neither work. Juan