diff --git a/avesp2.f b/avesp2.f
index 3802907b2..2bb635614 100644
--- a/avesp2.f
+++ b/avesp2.f
@@ -1,4 +1,4 @@
-      subroutine avesp2(dat,jza,nadd,f0,NFreeze,MouseDF,
+      subroutine avesp2(dat,jza,nadd,f0,mode,NFreeze,MouseDF,
      +  DFTolerance,fzap)
 
       real dat(jza)
@@ -27,20 +27,25 @@ C  Flatten s2 and get psa, ref, and birdie
       ia=300/df
       ib=2700/df
       n=0
+      fmouse=0.
+      if(mode.eq.2) fmouse=1270.46+MouseDF
+      if(mode.eq.4) fmouse=1076.66+MouseDF
+
       do i=ia,ib
          if(birdie(i)-ref(i).gt.3.0) then
             f=i*df
+
+C  Don't zap unless Freeze is OFF or birdie is outside the "Tol" range.
             if(NFreeze.eq.0 .or. 
-     +           abs(f-1270.46-MouseDF).gt.float(DFTolerance)) then
-             if(abs(f-f0).gt.25.0) then
+     +           abs(f-fmouse).gt.float(DFTolerance)) then
                if(n.lt.200 .and. variance(i-1).lt.2.5 .and.
-     +               variance(i).lt.2.5 .and. variance(i+1).lt.2.5) then
+     +              variance(i).lt.2.5.and.variance(i+1).lt.2.5) then
                   n=n+1
-                  fzap(n)=i*df
+                  fzap(n)=f
                endif
             endif
-           endif
-        endif
+
+         endif
       enddo
 
       return
diff --git a/wsjt.py b/wsjt.py
index 349b43557..564d12efd 100644
--- a/wsjt.py
+++ b/wsjt.py
@@ -1986,6 +1986,11 @@ try:
     params=f.readlines()
 except:
     params=""
+    if g.Win32:
+        options.PttPort.set("0")
+    else:
+        options.PttPort.set("/dev/cuad0")
+    Audio.gcom2.nport=0
 
 try:
     for i in range(len(params)):
@@ -2029,7 +2034,10 @@ try:
                 except:
                     Audio.gcom2.nport=0
             except:
-                options.PttPort.set("/dev/cuad0")
+                if g.Win32:
+                    options.PttPort.set("0")
+                else:
+                    options.PttPort.set("/dev/cuad0")
                 Audio.gcom2.nport=0
             Audio.gcom2.pttport=(options.PttPort.get()+'            ')[:12]
         elif key == 'Mileskm': options.mileskm.set(value)
diff --git a/wsjt1.F b/wsjt1.F
index 3e863385c..732132b24 100644
--- a/wsjt1.F
+++ b/wsjt1.F
@@ -128,7 +128,9 @@ C  Intentionally degrade SNR by -nclip dB.
 	endif
 
 	if(mode.ne.2 .and. nzap.ne.0) then
-	   if(jz.gt.100000) call avesp2(dat,jz,2,f0a,NFreeze,MouseDF,
+	   nfrz=NFreeze
+	   if(mode.eq.1) nfrz=0
+	   if(jz.gt.100000) call avesp2(dat,jz,2,f0a,mode,nfrz,MouseDF,
      +         DFTolerance,fzap)
 	   nadd=1
  	   call bzap(dat,jz,nadd,mode,fzap)
@@ -184,7 +186,7 @@ C  Intentionally degrade SNR by -nclip dB.
  	   jz=jz2
  	   nadd=1
  	   fzap(1)=0.
- 	   if(nzap.eq.1) call avesp2(dat,jz,nadd,f0a,NFreeze,MouseDF,
+ 	   if(nzap.eq.1) call avesp2(dat,jz,nadd,f0a,mode,NFreeze,MouseDF,
      +       DFTolerance,fzap)
     	   if(nzap.eq.1.and.nstest.eq.0) call bzap(dat,jz,nadd,mode,fzap)