diff --git a/sndlock.cpp b/sndlock.cpp
index 572c8f0..f269d89 100644
--- a/sndlock.cpp
+++ b/sndlock.cpp
@@ -316,7 +316,7 @@ int main(int argc, char* argv[])
     std::atexit(glfwTerminate);
     glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
     glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
-    static GLFWwindow *window = glfwCreateWindow(1024, 1200, "Soundlocker", nullptr, nullptr);
+    static GLFWwindow *window = glfwCreateWindow(1024, 1370, "Soundlocker", nullptr, nullptr);
     if(window == nullptr) {
         std::cerr << "failed to create GLFW window\n";
         return 1;
@@ -481,7 +481,7 @@ int main(int argc, char* argv[])
             }
         }
 
-        if(ImGui::CollapsingHeader("Laser servo")) {
+        if(ImGui::CollapsingHeader("Laser servo", ImGuiTreeNodeFlags_DefaultOpen)) {
             for(int i=0;i<SND_PCHAN;i++) {
                 char str[64];
                 sprintf(str, "Channel %d", i);