diff --git a/doc/7-systems/status-VBoy-env-error.png b/doc/7-systems/status-VBoy-env-error.png
new file mode 100644
index 000000000..5567e529d
Binary files /dev/null and b/doc/7-systems/status-VBoy-env-error.png differ
diff --git a/doc/7-systems/status-VBoy-env-none.png b/doc/7-systems/status-VBoy-env-none.png
new file mode 100644
index 000000000..cfd5af66d
Binary files /dev/null and b/doc/7-systems/status-VBoy-env-none.png differ
diff --git a/doc/7-systems/status-VBoy-env-warn.png b/doc/7-systems/status-VBoy-env-warn.png
new file mode 100644
index 000000000..727212cc4
Binary files /dev/null and b/doc/7-systems/status-VBoy-env-warn.png differ
diff --git a/doc/7-systems/virtual-boy.md b/doc/7-systems/virtual-boy.md
index 5bdadb67a..2bb1d4224 100644
--- a/doc/7-systems/virtual-boy.md
+++ b/doc/7-systems/virtual-boy.md
@@ -51,6 +51,14 @@ additionally, channel 5 offers a modulation/sweep unit. the former is similar to
 
 this chip uses the [Virtual Boy](../4-instrument/virtual-boy.md) instrument editor.
 
+## channel status
+
+the following icons are displayed when channel status is enabled in the pattern view:
+
+- ![envelope off](status-VBoy-env-none.png) hardware envelope is disabled or running OK
+- ![envelope warning](status-VBoy-env-warn.png) hardware envelope has finished - attempting to write a new envelope won't work without phase reset!
+- ![envelope error](status-VBoy-env-error.png) can't start hardware envelope - please reset phase
+
 ## chip config
 
 the following options are available in the Chip Manager window:
diff --git a/src/engine/dispatch.h b/src/engine/dispatch.h
index bd720b597..c048ad918 100644
--- a/src/engine/dispatch.h
+++ b/src/engine/dispatch.h
@@ -564,6 +564,8 @@ struct DivChannelModeHints {
   // - 18: inc linear
   // - 19: inc bent
   // - 20: direct
+  // - 21: warning
+  // - 22: error
   unsigned char type[4];
   // up to 4
   unsigned char count;
diff --git a/src/engine/platform/sound/vsu.cpp b/src/engine/platform/sound/vsu.cpp
index 467c2c00e..af9dd6319 100644
--- a/src/engine/platform/sound/vsu.cpp
+++ b/src/engine/platform/sound/vsu.cpp
@@ -156,8 +156,9 @@ void VSU::Write(int timestamp, unsigned int A, unsigned char V)
 
 	      WavePos[ch] = 0;
 
-	      if(ch == 5)	// Not sure if this is correct.
+	      if(ch == 5)	{ // Not sure if this is correct.
 	       lfsr = 1;
+        }
 
         EnvelopeModMask[ch] = 0;
         if(!(EnvControl[ch] & 0x200) && (
diff --git a/src/engine/platform/sound/vsu.h b/src/engine/platform/sound/vsu.h
index 967e4f4b7..29b8acd4a 100644
--- a/src/engine/platform/sound/vsu.h
+++ b/src/engine/platform/sound/vsu.h
@@ -92,10 +92,12 @@ class VSU
  int EnvelopeClockDivider[6];
  int SweepModClockDivider;
 
+  public:
  int EnvelopeModMask[6];
  int ModState;
  int ModLock;
 
+private:
  int NoiseLatcherClockDivider;
  unsigned int NoiseLatcher;
 
diff --git a/src/engine/platform/vb.cpp b/src/engine/platform/vb.cpp
index f8cdb7fba..ae75f0044 100644
--- a/src/engine/platform/vb.cpp
+++ b/src/engine/platform/vb.cpp
@@ -19,6 +19,8 @@
 
 #include "vb.h"
 #include "../engine.h"
+#include "IconsFontAwesome4.h"
+#include "furIcons.h"
 #include <math.h>
 
 //#define rWrite(a,v) pendingWrites[a]=v;
@@ -252,6 +254,27 @@ void DivPlatformVB::tick(bool sysTick) {
       }
     }
   }
+
+  for (int i=0; i<6; i++) {
+    if ((chan[i].envHigh&3)==0) {
+      chan[i].hasEnvWarning=0;
+    } else {
+      switch (vb->EnvelopeModMask[i]) {
+        case 0: // envelope OK
+          chan[i].hasEnvWarning=0;
+          break;
+        case 1: // envelope has finished
+          chan[i].hasEnvWarning=21;
+          break;
+        case 2: // can't envelope
+          chan[i].hasEnvWarning=22;
+          break;
+      }
+    }
+  }
+  /*if (vb->ModLock) {
+    chan[4].hasEnvWarning=4;
+  }*/
 }
 
 int DivPlatformVB::dispatch(DivCommand c) {
@@ -477,6 +500,16 @@ unsigned short DivPlatformVB::getPan(int ch) {
   return ((chan[ch].pan&0xf0)<<4)|(chan[ch].pan&15);
 }
 
+DivChannelModeHints DivPlatformVB::getModeHints(int ch) {
+  DivChannelModeHints ret;
+  //if (ch>4) return ret;
+  ret.count=1;
+  ret.hint[0]=ICON_FA_EXCLAMATION_TRIANGLE;
+  ret.type[0]=chan[ch].hasEnvWarning;
+  
+  return ret;
+}
+
 DivDispatchOscBuffer* DivPlatformVB::getOscBuffer(int ch) {
   return oscBuf[ch];
 }
diff --git a/src/engine/platform/vb.h b/src/engine/platform/vb.h
index f7dc6c422..1a95f39b5 100644
--- a/src/engine/platform/vb.h
+++ b/src/engine/platform/vb.h
@@ -30,6 +30,7 @@ class DivPlatformVB: public DivDispatch {
     int antiClickPeriodCount, antiClickWavePos;
     unsigned char pan, envLow, envHigh;
     bool noise, deferredWaveUpdate, intWritten;
+    unsigned char hasEnvWarning;
     signed short wave;
     DivWaveSynth ws;
     Channel():
@@ -42,6 +43,7 @@ class DivPlatformVB: public DivDispatch {
       noise(false),
       deferredWaveUpdate(false),
       intWritten(false),
+      hasEnvWarning(0),
       wave(-1) {}
   };
   Channel chan[6];
@@ -78,6 +80,7 @@ class DivPlatformVB: public DivDispatch {
     void* getChanState(int chan);
     DivMacroInt* getChanMacroInt(int ch);
     unsigned short getPan(int chan);
+    DivChannelModeHints getModeHints(int chan);
     DivDispatchOscBuffer* getOscBuffer(int chan);
     unsigned char* getRegisterPool();
     int getRegisterPoolSize();
diff --git a/src/gui/gui.h b/src/gui/gui.h
index 81e4a8383..45975dd35 100644
--- a/src/gui/gui.h
+++ b/src/gui/gui.h
@@ -434,6 +434,8 @@ enum FurnaceGUIColors {
   GUI_COLOR_PATTERN_STATUS_INC,
   GUI_COLOR_PATTERN_STATUS_BENT,
   GUI_COLOR_PATTERN_STATUS_DIRECT,
+  GUI_COLOR_PATTERN_STATUS_WARNING,
+  GUI_COLOR_PATTERN_STATUS_ERROR,
   GUI_COLOR_PATTERN_PAIR,
 
   GUI_COLOR_SAMPLE_BG,
diff --git a/src/gui/guiConst.cpp b/src/gui/guiConst.cpp
index 40938b42d..fa9bb99e4 100644
--- a/src/gui/guiConst.cpp
+++ b/src/gui/guiConst.cpp
@@ -1134,6 +1134,8 @@ const FurnaceGUIColorDef guiColors[GUI_COLOR_MAX]={
   D(GUI_COLOR_PATTERN_STATUS_INC,"",ImVec4(0.1f,0.1f,1.0f,1.0f)),
   D(GUI_COLOR_PATTERN_STATUS_BENT,"",ImVec4(1.0f,1.0f,0.1f,1.0f)),
   D(GUI_COLOR_PATTERN_STATUS_DIRECT,"",ImVec4(1.0f,0.5f,0.2f,1.0f)),
+  D(GUI_COLOR_PATTERN_STATUS_WARNING,"",ImVec4(0.98f,0.98f,0.06f,1.0f)),
+  D(GUI_COLOR_PATTERN_STATUS_ERROR,"",ImVec4(0.98f,0.06f,0.06f,1.0f)),
 
   D(GUI_COLOR_PATTERN_PAIR,"",ImVec4(0.6f,0.8f,1.0f,1.0f)),
 
diff --git a/src/gui/pattern.cpp b/src/gui/pattern.cpp
index c0bd230d0..5551bd284 100644
--- a/src/gui/pattern.cpp
+++ b/src/gui/pattern.cpp
@@ -1138,6 +1138,12 @@ void FurnaceGUI::drawPattern() {
                 case 20:
                   hintColor=uiColors[GUI_COLOR_PATTERN_STATUS_DIRECT];
                   break;
+                case 21:
+                  hintColor=uiColors[GUI_COLOR_PATTERN_STATUS_WARNING];
+                  break;
+                case 22:
+                  hintColor=uiColors[GUI_COLOR_PATTERN_STATUS_ERROR];
+                  break;
                 default:
                   hintColor=uiColors[GUI_COLOR_TEXT];
                   break;
diff --git a/src/gui/settings.cpp b/src/gui/settings.cpp
index 5835a2cb2..22d1f305d 100644
--- a/src/gui/settings.cpp
+++ b/src/gui/settings.cpp
@@ -4312,6 +4312,8 @@ void FurnaceGUI::drawSettings() {
           UI_COLOR_CONFIG(GUI_COLOR_PATTERN_STATUS_INC,_("Status: increase"));
           UI_COLOR_CONFIG(GUI_COLOR_PATTERN_STATUS_BENT,_("Status: bent"));
           UI_COLOR_CONFIG(GUI_COLOR_PATTERN_STATUS_DIRECT,_("Status: direct"));
+          UI_COLOR_CONFIG(GUI_COLOR_PATTERN_STATUS_WARNING,_("Status: warning"));
+          UI_COLOR_CONFIG(GUI_COLOR_PATTERN_STATUS_ERROR,_("Status: error"));
           ImGui::TreePop();
         }
         if (ImGui::TreeNode(_("Sample Editor"))) {