All;I was flying the PMDG 737NG - 700 under FS9 from LAX to Tucson this morning and along the way I was told to contact center on a new frequency. I dialed in the frequency on the Saitek radio panel, pushed Active/Standby and then 1 to contact center (I had already pushed 7 to acknowledge). I noticed the ATC window said NA with nothing else appearing. Then the window displayed a normal condition and ATC barked at me to contact center on the same frequency. Without switching back, I pushed 7 and heard my acknowledgement. I then pushed 1 and again NA. this repeated itself one more time with ATC getting mad at me (very realistic by the way) and then it suddenly accepted me hitting 1.I do not have auto-tune on and this is the first time I have had this happen to me. I have inadvertently dialed in the wrong frequency before, but the ATC window just sits there and I here nothing over the air for me "checking in" until I dial in the correct frequency.I did not make a log but was wondering if anyone has seen this one?I have logged over a dozen flights now all over the Southwest with RC 4.3 and I can't wait for v5! I cannot imagine flying without it. LAX was saturated yesterdy and I had to get vectored around until things "settled down". Just like real-life in the basin :) Great work JD and all the others involved.John

All;I was flying the PMDG 737NG - 700 under FS9 from LAX to Tucson this morning and along the way I was told to contact center on a new frequency. I dialed in the frequency on the Saitek radio panel, pushed Active/Standby and then 1 to contact center (I had already pushed 7 to acknowledge). I noticed the ATC window said NA with nothing else appearing. Then the window displayed a normal condition and ATC barked at me to contact center on the same frequency. Without switching back, I pushed 7 and heard my acknowledgement. I then pushed 1 and again NA. this repeated itself one more time with ATC getting mad at me (very realistic by the way) and then it suddenly accepted me hitting 1.I do not have auto-tune on and this is the first time I have had this happen to me. I have inadvertently dialed in the wrong frequency before, but the ATC window just sits there and I here nothing over the air for me "checking in" until I dial in the correct frequency.I did not make a log but was wondering if anyone has seen this one?I have logged over a dozen flights now all over the Southwest with RC 4.3 and I can't wait for v5! I cannot imagine flying without it. LAX was saturated yesterdy and I had to get vectored around until things "settled down". Just like real-life in the basin :) Great work JD and all the others involved.John

without a log, it's only speculationdo you have .25 mhz frequencies enabled? was it a nnn.n25 or a nnn.n75 frequency?is fsuipc up to date? latest drivers for device?jd