diff --git a/src/Draw.cpp b/src/Draw.cpp
index 16742d2b..8fbbdcfc 100644
--- a/src/Draw.cpp
+++ b/src/Draw.cpp
@@ -419,6 +419,10 @@ void BackupSurface(SurfaceID surf_no, const RECT *rect)
 	scaled_rect.right = rect->right * magnification;
 	scaled_rect.bottom = rect->bottom * magnification;
 
+	// Do not draw invalid RECTs
+	if (rcWork->right <= rcWork->left || rcWork->bottom <= rcWork->top)
+		return;
+
 	RenderBackend_Blit(framebuffer, &scaled_rect, surf[surf_no], scaled_rect.left, scaled_rect.top, FALSE);
 }
 
@@ -454,6 +458,10 @@ void PutBitmap3(const RECT *rcView, int x, int y, const RECT *rect, SurfaceID su
 	rcWork.right *= magnification;
 	rcWork.bottom *= magnification;
 
+	// Do not draw invalid RECTs
+	if (rcWork->right <= rcWork->left || rcWork->bottom <= rcWork->top)
+		return;
+
 	RenderBackend_Blit(surf[surf_no], &rcWork, framebuffer, x * magnification, y * magnification, TRUE);
 }
 
@@ -489,6 +497,10 @@ void PutBitmap4(const RECT *rcView, int x, int y, const RECT *rect, SurfaceID su
 	rcWork.right *= magnification;
 	rcWork.bottom *= magnification;
 
+	// Do not draw invalid RECTs
+	if (rcWork->right <= rcWork->left || rcWork->bottom <= rcWork->top)
+		return;
+
 	RenderBackend_Blit(surf[surf_no], &rcWork, framebuffer, x * magnification, y * magnification, FALSE);
 }
 
@@ -501,6 +513,10 @@ void Surface2Surface(int x, int y, const RECT *rect, int to, int from)
 	rcWork.right = rect->right * magnification;
 	rcWork.bottom = rect->bottom * magnification;
 
+	// Do not draw invalid RECTs
+	if (rcWork->right <= rcWork->left || rcWork->bottom <= rcWork->top)
+		return;
+
 	RenderBackend_Blit(surf[from], &rcWork, surf[to], x * magnification, y * magnification, TRUE);
 }
 
@@ -522,6 +538,10 @@ void CortBox(const RECT *rect, unsigned long col)
 	const unsigned char green = (col >> 8) & 0xFF;
 	const unsigned char blue = (col >> 16) & 0xFF;
 
+	// Do not draw invalid RECTs
+	if (dst_rect->right <= dst_rect->left || dst_rect->bottom <= dst_rect->top)
+		return;
+
 	RenderBackend_ColourFill(framebuffer, &dst_rect, red, green, blue);
 }
 
@@ -539,6 +559,10 @@ void CortBox2(const RECT *rect, unsigned long col, SurfaceID surf_no)
 	const unsigned char green = (col >> 8) & 0xFF;
 	const unsigned char blue = (col >> 16) & 0xFF;
 
+	// Do not draw invalid RECTs
+	if (dst_rect->right <= dst_rect->left || dst_rect->bottom <= dst_rect->top)
+		return;
+
 	RenderBackend_ColourFill(surf[surf_no], &dst_rect, red, green, blue);
 }