diff --git a/engine/MUNGA_L4/L4GLASSWIN.cpp b/engine/MUNGA_L4/L4GLASSWIN.cpp
index 6c1e816..d3adff6 100644
--- a/engine/MUNGA_L4/L4GLASSWIN.cpp
+++ b/engine/MUNGA_L4/L4GLASSWIN.cpp
@@ -809,6 +809,32 @@ static void
 		SelectObject(dc, oldBrush);
 		SelectObject(dc, oldPen);
 		DeleteObject(pen);
+
+		// FLASHING lamps re-draw ON TOP of the surface (#118): the alarm
+		// invites (gotoEngineering / engEject, RIO flash bits state&3) were
+		// invisible under the imagery -- only the few protruding edge pixels
+		// blinked, and the operator "never saw it flash".  The pod's keys
+		// were physical backlit buttons BESIDE the screen; when one carries
+		// a FLASH state, give it its full face back so the invite reads.
+		for (int i = 0; i < w->buttonCount; ++i)
+		{
+			const GButton &b = w->buttons[i];
+			int state = PadRIO::GetLampState(b.address);
+			if ((state & 3) == 0)
+				continue;						// not flashing
+			int shade = LampBrightnessOf(state, tick);
+			COLORREF bright = (b.color == ClrYellow) ? RGB(245, 210, 60)
+			                : (b.color == ClrBlue)   ? RGB(205, 228, 255)
+			                                         : RGB(230, 70, 70);
+			COLORREF dim    = (b.color == ClrYellow) ? RGB(70, 60, 24)
+			                : (b.color == ClrBlue)   ? RGB(70, 86, 120)
+			                                         : RGB(64, 40, 40);
+			HBRUSH face = CreateSolidBrush((shade >= 2) ? bright : dim);
+			RECT r = b.rect;
+			FillRect(dc, &r, face);
+			DeleteObject(face);
+			FrameRect(dc, &r, (HBRUSH)GetStockObject(WHITE_BRUSH));
+		}
 	}
 
 	BitBlt(winDC, 0, 0, client.right - client.left, client.bottom - client.top,