diff --git a/platforms/linux/aarch64/external.sh b/platforms/linux/aarch64/external.sh
index 98bf3d8..e9ef5bc 100755
--- a/platforms/linux/aarch64/external.sh
+++ b/platforms/linux/aarch64/external.sh
@@ -6,7 +6,7 @@ LIBCARGS_SHA=5949a20a926e902931de4a32adaad9f19c76f251
 LIBOPENAL_SHA=d3875f333fb6abe2f39d82caca329414871ae53b
 LIBPINMAME_SHA=master
 LIBPPUC_SHA=main
-LIBDMDUTIL_SHA=master
+LIBDMDUTIL_SHA=3af59032f9fcc0f2ea9462c6d55416cf99ad869e
 
 echo "Building libraries..."
 echo "  LIBCARGS_SHA: ${LIBCARGS_SHA}"
@@ -24,7 +24,7 @@ cd external
 # libdmdutil
 #
 
-curl -sL https://github.com/vpinball/libdmdutil/archive/${LIBDMDUTIL_SHA}.zip -o libdmdutil.zip
+curl -sL https://github.com/ppuc/libdmdutil/archive/${LIBDMDUTIL_SHA}.zip -o libdmdutil.zip
 unzip libdmdutil.zip
 cd libdmdutil-${LIBDMDUTIL_SHA}
 cp -r include/DMDUtil ../../third-party/include/
diff --git a/platforms/linux/x64/build.sh b/platforms/linux/x64/build.sh
index 74f032d..0983d61 100755
--- a/platforms/linux/x64/build.sh
+++ b/platforms/linux/x64/build.sh
@@ -4,7 +4,7 @@ set -e
 
 ./platforms/linux/x64/external.sh
 
-cmake -DPLATFORM=linux -DARCH=x64 -DCMAKE_BUILD_TYPE=Release -B build
+cmake -DPLATFORM=linux -DARCH=x64 -DCMAKE_BUILD_TYPE=Debug -B build
 cmake --build build
 
 rm -rf ppuc
diff --git a/platforms/linux/x64/external.sh b/platforms/linux/x64/external.sh
index c9e8743..7213244 100755
--- a/platforms/linux/x64/external.sh
+++ b/platforms/linux/x64/external.sh
@@ -6,7 +6,7 @@ LIBCARGS_SHA=5949a20a926e902931de4a32adaad9f19c76f251
 LIBOPENAL_SHA=d3875f333fb6abe2f39d82caca329414871ae53b
 LIBPINMAME_SHA=master
 LIBPPUC_SHA=main
-LIBDMDUTIL_SHA=master
+LIBDMDUTIL_SHA=3af59032f9fcc0f2ea9462c6d55416cf99ad869e
 
 echo "Building libraries..."
 echo "  LIBCARGS_SHA: ${LIBCARGS_SHA}"
@@ -24,7 +24,7 @@ cd external
 # libdmdutil
 #
 
-curl -sL https://github.com/vpinball/libdmdutil/archive/${LIBDMDUTIL_SHA}.zip -o libdmdutil.zip
+curl -sL https://github.com/ppuc/libdmdutil/archive/${LIBDMDUTIL_SHA}.zip -o libdmdutil.zip
 unzip libdmdutil.zip
 cd libdmdutil-${LIBDMDUTIL_SHA}
 cp -r include/DMDUtil ../../third-party/include/
diff --git a/platforms/macos/arm64/external.sh b/platforms/macos/arm64/external.sh
index 381eb9c..41ed6bc 100755
--- a/platforms/macos/arm64/external.sh
+++ b/platforms/macos/arm64/external.sh
@@ -6,7 +6,7 @@ LIBCARGS_SHA=5949a20a926e902931de4a32adaad9f19c76f251
 LIBOPENAL_SHA=d3875f333fb6abe2f39d82caca329414871ae53b
 LIBPINMAME_SHA=master
 LIBPPUC_SHA=main
-LIBDMDUTIL_SHA=master
+LIBDMDUTIL_SHA=3af59032f9fcc0f2ea9462c6d55416cf99ad869e
 
 echo "Building libraries..."
 echo "  LIBCARGS_SHA: ${LIBCARGS_SHA}"
@@ -24,7 +24,7 @@ cd external
 # libdmdutil
 #
 
-curl -sL https://github.com/vpinball/libdmdutil/archive/${LIBDMDUTIL_SHA}.zip -o libdmdutil.zip
+curl -sL https://github.com/ppuc/libdmdutil/archive/${LIBDMDUTIL_SHA}.zip -o libdmdutil.zip
 unzip libdmdutil.zip
 cd libdmdutil-${LIBDMDUTIL_SHA}
 cp -r include/DMDUtil ../../third-party/include/
diff --git a/platforms/macos/x64/external.sh b/platforms/macos/x64/external.sh
index 270bb50..2db3418 100755
--- a/platforms/macos/x64/external.sh
+++ b/platforms/macos/x64/external.sh
@@ -6,7 +6,7 @@ LIBCARGS_SHA=5949a20a926e902931de4a32adaad9f19c76f251
 LIBOPENAL_SHA=d3875f333fb6abe2f39d82caca329414871ae53b
 LIBPINMAME_SHA=master
 LIBPPUC_SHA=main
-LIBDMDUTIL_SHA=master
+LIBDMDUTIL_SHA=3af59032f9fcc0f2ea9462c6d55416cf99ad869e
 
 echo "Building libraries..."
 echo "  LIBCARGS_SHA: ${LIBCARGS_SHA}"
@@ -24,7 +24,7 @@ cd external
 # libdmdutil
 #
 
-curl -sL https://github.com/vpinball/libdmdutil/archive/${LIBDMDUTIL_SHA}.zip -o libdmdutil.zip
+curl -sL https://github.com/ppuc/libdmdutil/archive/${LIBDMDUTIL_SHA}.zip -o libdmdutil.zip
 unzip libdmdutil.zip
 cd libdmdutil-${LIBDMDUTIL_SHA}
 cp -r include/DMDUtil ../../third-party/include/
diff --git a/src/ppuc.cpp b/src/ppuc.cpp
index ff58be0..20a0340 100644
--- a/src/ppuc.cpp
+++ b/src/ppuc.cpp
@@ -426,26 +426,6 @@ int main(int argc, char* argv[]) {
   // So it is important to start that search before the RS485 BUS gets
   // initialized.
   DMDUtil::Config* dmdConfig = DMDUtil::Config::GetInstance();
-  pDmd = new DMDUtil::DMD();
-  if (opt_debug) {
-    printf("Finding displays...\n");
-    dmdConfig->SetZeDMDDebug(opt_debug);
-  }
-  pDmd->FindDisplays();
-  if (opt_console_display) {
-    pDmd->CreateConsoleDMD(!opt_debug);
-  }
-  if (opt_dump) {
-    pDmd->DumpDMDTxt();
-  }
-
-  while (DMDUtil::DMD::IsFinding())
-    std::this_thread::sleep_for(std::chrono::milliseconds(100));
-
-  if (!opt_no_serial && !ppuc->Connect()) {
-    printf("Unable to open serial communication to PPUC boards.\n");
-    return 1;
-  }
 
   PinmameConfig config = {
       PINMAME_AUDIO_FORMAT_INT16,
@@ -476,10 +456,9 @@ int main(int argc, char* argv[]) {
   if (opt_serum) {
     char altcolorPath[PINMAME_MAX_PATH + 10];
 #if defined(_WIN32) || defined(_WIN64)
-    snprintf(altcolorPath, PINMAME_MAX_PATH + 9, "%s\\altcolor",
-             config.vpmPath);
+    snprintf(altcolorPath, PINMAME_MAX_PATH + 8, "%saltcolor", config.vpmPath);
 #else
-    snprintf(altcolorPath, PINMAME_MAX_PATH + 9, "%s/altcolor", config.vpmPath);
+    snprintf(altcolorPath, PINMAME_MAX_PATH + 8, "%saltcolor", config.vpmPath);
 #endif
 
     dmdConfig->SetAltColorPath(altcolorPath);
@@ -497,6 +476,31 @@ int main(int argc, char* argv[]) {
       ssf >> serum_skip_frames;
       dmdConfig->SetMaximumUnknownFramesToSkip(serum_skip_frames);
     }
+  } else {
+    dmdConfig->SetAltColor(false);
+  }
+
+  if (opt_debug) {
+    printf("Finding displays...\n");
+    dmdConfig->SetZeDMDDebug(opt_debug);
+  }
+
+  pDmd = new DMDUtil::DMD();
+  pDmd->SetRomName(opt_rom);
+  pDmd->FindDisplays();
+  if (opt_console_display) {
+    pDmd->CreateConsoleDMD(!opt_debug);
+  }
+  if (opt_dump) {
+    pDmd->DumpDMDTxt();
+  }
+
+  while (pDmd->IsFinding())
+    std::this_thread::sleep_for(std::chrono::milliseconds(100));
+
+  if (!opt_no_serial && !ppuc->Connect()) {
+    printf("Unable to open serial communication to PPUC boards.\n");
+    return 1;
   }
 
   // Initialize the sound device