Index: reactos/base/applications/mspaint/scrollbox.cpp
===================================================================
--- reactos/base/applications/mspaint/scrollbox.cpp	(revision 75083)
+++ reactos/base/applications/mspaint/scrollbox.cpp	(working copy)
@@ -114,3 +114,10 @@
     }
     return 0;
 }
+
+LRESULT CScrollboxWindow::OnLButtonDown(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
+{
+    selectionWindow.ShowWindow(SW_HIDE);
+    pointSP = 0;    // resets the point-buffer of the polygon and bezier functions
+    return 0;
+}
Index: reactos/base/applications/mspaint/scrollbox.h
===================================================================
--- reactos/base/applications/mspaint/scrollbox.h	(revision 75083)
+++ reactos/base/applications/mspaint/scrollbox.h	(working copy)
@@ -14,12 +14,13 @@
     BEGIN_MSG_MAP(CScrollboxWindow)
         MESSAGE_HANDLER(WM_SIZE, OnSize)
         MESSAGE_HANDLER(WM_HSCROLL, OnHScroll)
-        MESSAGE_HANDLER(WM_VSCROLL, OnVScroll)
+        MESSAGE_HANDLER(WM_LBUTTONDOWN, OnLButtonDown)
     END_MSG_MAP()
 
     LRESULT OnSize(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
     LRESULT OnHScroll(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
     LRESULT OnVScroll(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
+    LRESULT OnLButtonDown(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
 };
 
 void UpdateScrollbox();