diff --git a/CalculatorWindow.cpp b/CalculatorWindow.cpp
index 0edc207..e79d325 100644
--- a/CalculatorWindow.cpp
+++ b/CalculatorWindow.cpp
@@ -169,8 +169,15 @@ void CCalculatorWindow::PlaceInitial()
         AdjustWindowRectEx(&r,
             (DWORD)GetWindowLongPtr(GWL_STYLE), FALSE,
             (DWORD)GetWindowLongPtr(GWL_EXSTYLE));
-        SetWindowPos(NULL, r.left, r.top, 0, 0, SWP_NOSIZE | SWP_NOZORDER);
-        return;
+        // Only restore the saved position if it still lands on a connected
+        // monitor. Otherwise (e.g. the window was left on an external display
+        // that is no longer attached) the point is off-screen and the window
+        // would be invisible; fall through to first-run anchoring instead.
+        RECT full = { r.left, r.top, r.left + w, r.top + h };
+        if (::MonitorFromRect(&full, MONITOR_DEFAULTTONULL) != NULL) {
+            SetWindowPos(NULL, r.left, r.top, 0, 0, SWP_NOSIZE | SWP_NOZORDER);
+            return;
+        }
     }
     // First run: anchor bottom-right, just above the notification area.
     APPBARDATA abd{}; abd.cbSize = sizeof(abd);