diff --git a/ReactionRecorder.cs b/ReactionRecorder.cs
--- a/ReactionRecorder.cs
+++ b/ReactionRecorder.cs
@@ -114,7 +114,8 @@ namespace DesertPaintLab
         public int Y { get; private set; }
         public int ScreenWidth { get; private set; }
         public int ScreenHeight { get; private set; }
-        public PaintColor RecordedColor { get; private set; }
+        private PaintColor _recordedColor = new PaintColor();
+        public PaintColor RecordedColor { get { return _recordedColor; } private set { _recordedColor.Set(value); } }
         public int RedBarX { get; private set; }
         public int RedBarY { get; private set; }
 
@@ -459,6 +460,8 @@ namespace DesertPaintLab
             int redPixelStart = 0;
             ScreenWidth = screenshotWidth;
             ScreenHeight = screenshotHeight;
+            IsCaptured = false;
+            _recordedColor.Clear();
 
             IsCaptured = false;
             if (!firstRun)
diff --git a/UI/CaptureView.cs b/UI/CaptureView.cs
--- a/UI/CaptureView.cs
+++ b/UI/CaptureView.cs
@@ -288,7 +288,7 @@ namespace DesertPaintLab
                 notifyCaptureComplete = new Gtk.ThreadNotify(new Gtk.ReadyEvent(NotifyCaptureComplete));
             }
 
-            this.reactionSwatch.Color = new PaintColor("Searching", "00", "00", "00");
+            this.reactionSwatch.Clear();
 
             Thread thr = new Thread(new ThreadStart(this.CaptureReactionThread));
             thr.Priority = ThreadPriority.AboveNormal;
@@ -420,8 +420,6 @@ namespace DesertPaintLab
                 {
                     recordButton.Sensitive = recordEnabled;
                 }
-
-                captureButton.Sensitive = false;
             }
             else
             {
@@ -442,8 +440,7 @@ namespace DesertPaintLab
 
             ingredient1ComboBox.Sensitive = true;
             ingredient2ComboBox.Sensitive = true;
-            ingredient3ComboBox.Sensitive = false;
-            UpdateIngredients();
+            ingredient3ComboBox.Sensitive = (GetSelectedReagentName(1) != null) && (GetSelectedReagentName(2) != null);
         }
 
         private void NotifyCaptureComplete()