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</o:shapelayout></xml><![endif]--></head><body lang=EN-GB link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal>Roger, thank you very much for the detailed report of your seemingly similar problem. My problem turns out to be much more prosaic, the answer was emailed to me by Jim WA3LBI, he suggested that I increased the CPU priority in PowerSDR, and that seems to have completely solved my problem. I'm running a single version of HPSDR on a single computer, and with no remote operation, and a single rather hapless operator.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thank you for your trouble Roger, very much appreciated.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Jeff Cook, G0AFQ.<o:p></o:p></p></div></body></html>