diff --git a/src/frontend-common/achievements.cpp b/src/frontend-common/achievements.cpp
index ec843b76d..f67d5eb49 100644
--- a/src/frontend-common/achievements.cpp
+++ b/src/frontend-common/achievements.cpp
@@ -920,9 +920,7 @@ bool Achievements::LoginAsync(const char* username, const char* password)
     return false;
 
   if (FullscreenUI::IsInitialized())
-  {
-    ImGuiFullscreen::OpenBackgroundProgressDialog("cheevos_async_login", "Logging in to RetroAchivements...", 0, 1, 0);
-  }
+    ImGuiFullscreen::OpenBackgroundProgressDialog("cheevos_async_login", "Logging in to RetroAchivements...", 0, 0, 0);
 
   SendLogin(username, password, s_http_downloader.get(), LoginASyncCallback);
   return true;
diff --git a/src/frontend-common/imgui_fullscreen.cpp b/src/frontend-common/imgui_fullscreen.cpp
index 5796e4a29..08fdafb14 100644
--- a/src/frontend-common/imgui_fullscreen.cpp
+++ b/src/frontend-common/imgui_fullscreen.cpp
@@ -264,9 +264,8 @@ std::optional<Common::RGBA8Image> ImGuiFullscreen::LoadTextureImage(const char*
 
 std::shared_ptr<GPUTexture> ImGuiFullscreen::UploadTexture(const char* path, const Common::RGBA8Image& image)
 {
-  std::unique_ptr<GPUTexture> texture =
-    g_host_display->CreateTexture(image.GetWidth(), image.GetHeight(), 1, 1, 1, GPUTexture::Format::RGBA8,
-                                  image.GetPixels(), image.GetPitch());
+  std::unique_ptr<GPUTexture> texture = g_host_display->CreateTexture(
+    image.GetWidth(), image.GetHeight(), 1, 1, 1, GPUTexture::Format::RGBA8, image.GetPixels(), image.GetPitch());
   if (!texture)
   {
     Log_ErrorPrintf("failed to create %ux%u texture for resource", image.GetWidth(), image.GetHeight());
@@ -2264,17 +2263,32 @@ void ImGuiFullscreen::DrawBackgroundProgressDialogs(ImVec2& position, float spac
                 nullptr, 0.0f);
     pos.y += g_medium_font->FontSize + LayoutScale(10.0f);
 
-    ImVec2 bar_end(pos.x + window_width - LayoutScale(10.0f * 2.0f), pos.y + LayoutScale(25.0f));
-    float fraction = static_cast<float>(data.value - data.min) / static_cast<float>(data.max - data.min);
-    dl->AddRectFilled(pos, bar_end, ImGui::GetColorU32(UIPrimaryDarkColor));
-    dl->AddRectFilled(pos, ImVec2(pos.x + fraction * (bar_end.x - pos.x), bar_end.y),
-                      ImGui::GetColorU32(UISecondaryColor));
+    const ImVec2 box_end(pos.x + window_width - LayoutScale(10.0f * 2.0f), pos.y + LayoutScale(25.0f));
+    dl->AddRectFilled(pos, box_end, ImGui::GetColorU32(UIPrimaryDarkColor));
 
-    const std::string text(fmt::format("{}%", static_cast<int>(std::round(fraction * 100.0f))));
-    const ImVec2 text_size(ImGui::CalcTextSize(text.c_str()));
-    const ImVec2 text_pos(pos.x + ((bar_end.x - pos.x) / 2.0f) - (text_size.x / 2.0f),
-                          pos.y + ((bar_end.y - pos.y) / 2.0f) - (text_size.y / 2.0f));
-    dl->AddText(g_medium_font, g_medium_font->FontSize, text_pos, ImGui::GetColorU32(UIPrimaryTextColor), text.c_str());
+    if (data.min != data.max)
+    {
+      const float fraction = static_cast<float>(data.value - data.min) / static_cast<float>(data.max - data.min);
+      dl->AddRectFilled(pos, ImVec2(pos.x + fraction * (box_end.x - pos.x), box_end.y),
+                        ImGui::GetColorU32(UISecondaryColor));
+
+      const auto text = TinyString::FromFmt("{}%", static_cast<int>(std::round(fraction * 100.0f)));
+      const ImVec2 text_size(ImGui::CalcTextSize(text));
+      const ImVec2 text_pos(pos.x + ((box_end.x - pos.x) / 2.0f) - (text_size.x / 2.0f),
+                            pos.y + ((box_end.y - pos.y) / 2.0f) - (text_size.y / 2.0f));
+      dl->AddText(g_medium_font, g_medium_font->FontSize, text_pos, ImGui::GetColorU32(UIPrimaryTextColor),
+                  text.GetCharArray(), text.GetCharArray() + text.GetLength());
+    }
+    else
+    {
+      // indeterminate, so draw a scrolling bar
+      const float bar_width = LayoutScale(30.0f);
+      const float fraction = static_cast<float>(std::fmod(ImGui::GetTime(), 2.0) * 0.5);
+      const ImVec2 bar_start(pos.x + ImLerp(0.0f, box_end.x, fraction) - bar_width, pos.y);
+      const ImVec2 bar_end(std::min(bar_start.x + bar_width, box_end.x), pos.y + LayoutScale(25.0f));
+      dl->AddRectFilled(ImClamp(bar_start, pos, box_end), ImClamp(bar_end, pos, box_end),
+                        ImGui::GetColorU32(UISecondaryColor));
+    }
 
     position.y += s_notification_vertical_direction * (window_height + spacing);
   }