diff --git a/cpdctrl_gui/ui/main_window.py b/cpdctrl_gui/ui/main_window.py
index b93e57d..6aa76b4 100644
--- a/cpdctrl_gui/ui/main_window.py
+++ b/cpdctrl_gui/ui/main_window.py
@@ -3,7 +3,7 @@ from PyQt6.QtCore import Qt, QTimer
 from PyQt6.QtWidgets import QMainWindow, QWidget, QHBoxLayout, QLabel, QStatusBar, QFileDialog, \
     QVBoxLayout
 from PyQt6.QtWidgets import QToolBox, QTabWidget
-from PyQt6.QtGui import QIcon, QPixmap
+from PyQt6.QtGui import QIcon, QPixmap, QAction, QKeySequence
 from PyQt6.QtWidgets import QDialog, QDialogButtonBox, QMessageBox
 
 from ..resources import get_resource_path
@@ -33,10 +33,8 @@ from cpdctrl.measurement import measure
 
 class MainWindow(QMainWindow):
     """
-    MainWindow
-
-    Args:
-        QMainWindow (QMainWindow): Inheritance
+    The main window of the app.
+    Contains most logic as well as measurement functionality with live updates.
     """
 
     def __init__(self) -> None:
@@ -98,6 +96,23 @@ class MainWindow(QMainWindow):
 
         self.set_status("Ready")
 
+        # add qt actions that open help and about dialog
+        self.a_open_help = QAction(text="Help", parent=self)
+        self.a_open_help.setIcon(QIcon.fromTheme(QIcon.ThemeIcon.HelpFaq))
+        self.a_open_help.setShortcut(QKeySequence("F1"))
+        self.a_open_help.triggered.connect(lambda: self.app_open_help())
+
+        self.a_open_about = QAction(text="About", parent=self)
+        self.a_open_about.setIcon(QIcon.fromTheme(QIcon.ThemeIcon.HelpAbout))
+        self.a_open_about.triggered.connect(lambda: self.app_open_about())
+
+        self.topbar.addAction(self.a_open_help)
+        self.topbar.addAction(self.a_open_about)
+        self.menuBar().m_file.addAction(self.a_open_help)
+
+        # self.a_open_help.setShortcut(QKeySequence("F1"))
+
+
     def set_status(self, msg):
         self.statusBar().showMessage(msg)
 
@@ -282,8 +297,8 @@ class MainWindow(QMainWindow):
                 # print(data_queue.qsize(), "\n\n")
                 current_data = self.data_queue.get(block=False)
                 i, tval, vval, led_val = current_data
-                print(f"Data {i:03}: {tval}s, {vval}V, {led_val}%")
-                self.set_status(f"Data {i:03}: {tval}s, {vval}V, {led_val}%")
+                # print(f"Data {i:03}: {tval}s, {vval}V, {led_val}%")
+                self.set_status(f"Data {i:03}: {tval:.3f}s, {vval:.10f}V, {led_val:03}%")
                 # update the plot
                 self.w_plot.update_plot(tval, vval, led_val)
         else:  # measurement might have stopped after max N or script end
@@ -331,7 +346,7 @@ class MainWindow(QMainWindow):
         buttons.accepted.connect(dialog.accept)
         dialog.setLayout(QVBoxLayout())
         # show the logo via a pixmap in a label
-        img_path = get_resource_path("icons/logo2.svg")
+        img_path = get_resource_path("icons/logo.svg")
         pixmap = QPixmap(img_path)
         pixmap = pixmap.scaled(128, 128, Qt.AspectRatioMode.KeepAspectRatio, Qt.TransformationMode.SmoothTransformation)
         # qt cant find the file
@@ -340,7 +355,17 @@ class MainWindow(QMainWindow):
         label.setAlignment(Qt.AlignmentFlag.AlignCenter)  # center the image
         dialog.layout().addWidget(label)
         # show about.md
-        dialog.layout().addWidget(MarkdownView("about2.md"))
+        dialog.layout().addWidget(MarkdownView("about.md"))
+        dialog.layout().addWidget(buttons)
+        dialog.exec()
+
+    def app_open_help(self) -> None:
+        dialog = QDialog()
+        buttons = QDialogButtonBox(QDialogButtonBox.StandardButton.Ok)
+        buttons.accepted.connect(dialog.accept)
+        dialog.setLayout(QVBoxLayout())
+        # show help.md
+        dialog.layout().addWidget(MarkdownView("troubleshooting.md"))
         dialog.layout().addWidget(buttons)
         dialog.exec()