diff --git a/mainwindow.cpp b/mainwindow.cpp
index 9edd92fcb..d27fdc166 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -1485,7 +1485,10 @@ void MainWindow::guiUpdate()
   }
 
 // If btxok was just lowered, start a countdown for lowering PTT
-  if(!btxok && btxok0 && iptt==1) nc0=-11;  //RxDelay = 1.0 s
+  if(!btxok && btxok0 && iptt==1) {
+    nc0=-11;  //RxDelay = 1.0 s
+    btxok0=false;
+  }
   if(nc0 <= 0) nc0++;
   if(nc0 == 0) {
     if(m_bIQxt) g_pWideGraph->rx570();     // Set Si570 back to Rx Freq
@@ -1589,7 +1592,6 @@ void MainWindow::guiUpdate()
     m_sec0=nsec;
   }
   iptt0=iptt;
-  btxok0=btxok;
   bIQxt=m_bIQxt;
 }
 
diff --git a/map65-jtsdk.iss b/map65-jtsdk.iss
index 28fa76bae..91be387f4 100644
--- a/map65-jtsdk.iss
+++ b/map65-jtsdk.iss
@@ -1,6 +1,6 @@
 [Setup]
 AppName=MAP65
-AppVerName=MAP65 Version 2.5 r4579
+AppVerName=MAP65 Version 2.5 r4583
 AppCopyright=Copyright (C) 2001-2014 by Joe Taylor, K1JT
 DefaultDirName=C:\WSJT\MAP65
 DefaultGroupName=WSJT\MAP65