diff --git a/SourceFiles/DeviceResources.cpp b/SourceFiles/DeviceResources.cpp
index 5231719..00f33ba 100644
--- a/SourceFiles/DeviceResources.cpp
+++ b/SourceFiles/DeviceResources.cpp
@@ -240,6 +240,11 @@ void DeviceResources::UpdateOffscreenResources(int width, int height) {
     m_d3dOffscreenDepthStencilView.Reset();
     m_offscreenDepthStencil.Reset();
 
+    const int maxWidth = D3D11_REQ_TEXTURE2D_U_OR_V_DIMENSION; // Dx11 maximum texture dimension
+    const int maxHeight = D3D11_REQ_TEXTURE2D_U_OR_V_DIMENSION; // Dx11 maximum texture dimension
+    width = std::min(width, maxWidth);
+    height = std::min(height, maxHeight);
+
     const DXGI_FORMAT backBufferFormat = (m_options & (c_FlipPresent | c_AllowTearing | c_EnableHDR))
         ? NoSRGB(m_backBufferFormat)
         : m_backBufferFormat;
diff --git a/SourceFiles/MapBrowser.cpp b/SourceFiles/MapBrowser.cpp
index 37bfea4..e651b7d 100644
--- a/SourceFiles/MapBrowser.cpp
+++ b/SourceFiles/MapBrowser.cpp
@@ -170,17 +170,22 @@ void MapBrowser::Render()
     ImGui_ImplDX11_NewFrame();
     ImGui_ImplWin32_NewFrame();
     ImGui::NewFrame();
+    if (m_show_error_msg) {
+        ShowErrorMessage();
+    }
+    else {
 
-    draw_ui(m_dat_managers, m_dat_manager_to_show_in_dat_browser, m_map_renderer.get(), picking_info, m_csv_data, m_FPS_target, m_timer, m_extract_panel_info);
+        draw_ui(m_dat_managers, m_dat_manager_to_show_in_dat_browser, m_map_renderer.get(), picking_info, m_csv_data, m_FPS_target, m_timer, m_extract_panel_info);
 
-    if (!m_mft_indices_to_extract.empty()) {
-        draw_dat_load_progress_bar(m_dat_managers[m_dat_manager_to_show_in_dat_browser]->get_num_files_for_type(FFNA_Type3) - m_mft_indices_to_extract.size(),
-            m_dat_managers[m_dat_manager_to_show_in_dat_browser]->get_num_files_for_type(FFNA_Type3));
-    }
+        if (!m_mft_indices_to_extract.empty()) {
+            draw_dat_load_progress_bar(m_dat_managers[m_dat_manager_to_show_in_dat_browser]->get_num_files_for_type(FFNA_Type3) - m_mft_indices_to_extract.size(),
+                m_dat_managers[m_dat_manager_to_show_in_dat_browser]->get_num_files_for_type(FFNA_Type3));
+        }
 
-    static bool show_demo_window = false;
-    if (show_demo_window)
-        ImGui::ShowDemoWindow(&show_demo_window);
+        static bool show_demo_window = false;
+        if (show_demo_window)
+            ImGui::ShowDemoWindow(&show_demo_window);
+    }
 
     // Dear ImGui Render
     ImGui::Render();
@@ -287,10 +292,31 @@ void MapBrowser::Render()
 
                             HRESULT hrSave = DirectX::SaveToDDSFile(compressedImage.GetImages(), compressedImage.GetImageCount(), compressedImage.GetMetadata(), DDS_FLAGS_NONE, filename.c_str());
                             if (FAILED(hrSave)) {
-                                // Handle the error
+                                m_mft_indices_to_extract.clear();
+
+                                m_error_msg = std::format("SaveToDDSFile failed. Try lowering the resolution (i.e. use less pixels per tile).");
+                                m_show_error_msg = true;
                             }
                         }
+                        else {
+                            m_mft_indices_to_extract.clear();
+
+                            m_error_msg = std::format("Compress failed. Try lowering the resolution (i.e. use less pixels per tile).");
+                            m_show_error_msg = true;
+                        }
                     }
+                    else {
+                        m_mft_indices_to_extract.clear();
+
+                        m_error_msg = std::format("GenerateMipMaps failed. Try lowering the resolution (i.e. use less pixels per tile).");
+                        m_show_error_msg = true;
+                    }
+                }
+                else {
+                    m_mft_indices_to_extract.clear();
+                    
+                    m_error_msg = std::format("CaptureTexture failed. Not enough VRAM, try lowering the resolution (i.e. use less pixels per tile).");
+                    m_show_error_msg = true;
                 }
             }
 
@@ -339,6 +365,35 @@ void MapBrowser::ClearOffscreen() {
     m_deviceResources->PIXEndEvent();
 }
 
+void MapBrowser::ShowErrorMessage() {
+    if (m_show_error_msg) {
+        // Set the window to be centered
+        ImGui::SetNextWindowPos(ImVec2(ImGui::GetIO().DisplaySize.x * 0.5f,
+            ImGui::GetIO().DisplaySize.y * 0.5f),
+            ImGuiCond_Appearing, ImVec2(0.5f, 0.5f));
+
+        // Set the window to have a red border
+        ImGui::PushStyleColor(ImGuiCol_Border, ImVec4(1.0f, 0.0f, 0.0f, 1.0f));
+
+        // Create a window that is not resizable, not movable and with a title bar
+        ImGui::Begin("Error", &m_show_error_msg, ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoMove);
+
+        // Display the error message
+        ImGui::Text("%s", m_error_msg.c_str());
+
+        // Close button
+        if (ImGui::Button("Close")) {
+            m_show_error_msg = false;
+        }
+
+        // End the window
+        ImGui::End();
+
+        // Pop the style color for the border
+        ImGui::PopStyleColor();
+    }
+}
+
 #pragma region Message Handlers
 // Message handlers
 void MapBrowser::OnActivated()
diff --git a/SourceFiles/MapBrowser.h b/SourceFiles/MapBrowser.h
index 6f3f953..ac3beee 100644
--- a/SourceFiles/MapBrowser.h
+++ b/SourceFiles/MapBrowser.h
@@ -55,6 +55,8 @@ class MapBrowser final : public DX::IDeviceNotify
     void Clear();
     void ClearOffscreen();
 
+    void ShowErrorMessage();
+
     void CreateDeviceDependentResources();
     void CreateWindowSizeDependentResources();
 
@@ -83,4 +85,7 @@ class MapBrowser final : public DX::IDeviceNotify
     std::vector<std::vector<std::string>> m_csv_data;
 
     std::unique_ptr<MapRenderer> m_map_renderer;
+
+    std::string m_error_msg = "";
+    bool m_show_error_msg = false;
 };
diff --git a/SourceFiles/draw_extract_panel.cpp b/SourceFiles/draw_extract_panel.cpp
index f8993de..d7f4c63 100644
--- a/SourceFiles/draw_extract_panel.cpp
+++ b/SourceFiles/draw_extract_panel.cpp
@@ -3,7 +3,7 @@
 #include "GuiGlobalConstants.h"
 #include "GWUnpacker.h"
 
-constexpr int max_pixel_per_tile_dir = 20;
+constexpr int max_pixel_per_tile_dir = 16384;
 
 void draw_extract_panel(ExtractPanelInfo& extract_panel_info, DATManager* dat_manager)
 {