diff --git a/PIVlab_capture_resources/PIVlab_capture_pco.m b/PIVlab_capture_resources/PIVlab_capture_pco.m
index fb4487b..d910072 100644
--- a/PIVlab_capture_resources/PIVlab_capture_pco.m
+++ b/PIVlab_capture_resources/PIVlab_capture_pco.m
@@ -563,7 +563,7 @@
 							if isvalid(image_handle_pco)
 								hist_fig=findobj('tag','hist_fig');
 								if isempty(hist_fig)
-									hist_fig=figure('numbertitle','off','MenuBar','none','DockControls','off','Name','Live histogram','Toolbar','none','tag','hist_fig');
+									hist_fig=figure('numbertitle','off','MenuBar','none','DockControls','off','Name','Live histogram','Toolbar','none','tag','hist_fig','CloseRequestFcn', @HistWindow_CloseRequestFcn);
 								end
 								if ~exist ('old_hist_y_limits','var')
 									old_hist_y_limits =[0 35000];
@@ -840,3 +840,11 @@
 	end
 end
 
+function HistWindow_CloseRequestFcn(hObject,~)
+hgui=getappdata(0,'hgui');
+setappdata(hgui,'hist_enabled',0);
+try
+	delete(hObject);
+catch
+	delete(gcf);
+end
diff --git a/PIVlab_settings_default.mat b/PIVlab_settings_default.mat
index 107b5cf..adff65b 100644
Binary files a/PIVlab_settings_default.mat and b/PIVlab_settings_default.mat differ
diff --git a/resources/project/Root.type.ProjectPath/210c4d73-b95c-42b7-9a51-21aa2be28e89.type.Reference.xml b/resources/project/Root.type.ProjectPath/210c4d73-b95c-42b7-9a51-21aa2be28e89.type.Reference.xml
deleted file mode 100644
index d1b4c40..0000000
--- a/resources/project/Root.type.ProjectPath/210c4d73-b95c-42b7-9a51-21aa2be28e89.type.Reference.xml
+++ /dev/null
@@ -1,2 +0,0 @@
-<?xml version='1.0' encoding='UTF-8'?>
-<Info Ref="PIVlab_capture_resources" Type="Relative" />
\ No newline at end of file
diff --git a/resources/project/Root.type.ProjectPath/976c6002-4035-43b6-875e-c3235f283e1d.type.Reference.xml b/resources/project/Root.type.ProjectPath/976c6002-4035-43b6-875e-c3235f283e1d.type.Reference.xml
deleted file mode 100644
index 6003c7b..0000000
--- a/resources/project/Root.type.ProjectPath/976c6002-4035-43b6-875e-c3235f283e1d.type.Reference.xml
+++ /dev/null
@@ -1,2 +0,0 @@
-<?xml version='1.0' encoding='UTF-8'?>
-<Info Ref="PIVlab_capture_resources/PCO_resources/scripts" Type="Relative" />
\ No newline at end of file