Can someone please explain a rig interface on COM4? 1000MP com port is on COM 4 but when I select it in Writelog, the software says com 4 is not available and the system could not find the specified file. Thanks Tony - N2KI SYSOP - N2KI DX CLUSTER dxc.n2ki.com:7300 RF Gateway 145.650 Website: www.n2ki.com DX Spoken Here