I have the following: BOCA Research 2400bps external modem female-male NULL-MODEM adapter male-male gender changer genuine TI-GRAPH LINK TI-92 I have been unable to get my TI-92 to work with the modem. I have tried all the tricks posted to this mailing list. All that I have been able to do is get the RD and SD lights to blink on the modem. I't doesn't send back "OK" to the calc, and it won't make noise or dial. What am I doing wrong?