diff --git a/mainwindow.ui b/mainwindow.ui
index dfab89d..330d89f 100644
--- a/mainwindow.ui
+++ b/mainwindow.ui
@@ -51,10 +51,17 @@
            <height>16777215</height>
           </size>
          </property>
+         <property name="editable">
+          <bool>false</bool>
+         </property>
         </widget>
        </item>
        <item row="1" column="1">
-        <widget class="QComboBox" name="baudbox"/>
+        <widget class="QComboBox" name="baudbox">
+         <property name="editable">
+          <bool>true</bool>
+         </property>
+        </widget>
        </item>
        <item row="0" column="0">
         <widget class="QPushButton" name="portsBtn">
diff --git a/repraptor.h b/repraptor.h
index d446335..344d2ba 100644
--- a/repraptor.h
+++ b/repraptor.h
@@ -1,3 +1,7 @@
+/////////////////////////////////////////////////
+//This file contains RepRaptor - specific stuff//
+/////////////////////////////////////////////////
+
 #ifndef REPRAPTOR_H
 #define REPRAPTOR_H
 
diff --git a/sender.cpp b/sender.cpp
index 641f5c8..6cee970 100644
--- a/sender.cpp
+++ b/sender.cpp
@@ -40,6 +40,7 @@ void Sender::sendNext()
 {
     if(printer->isWritable() && readyReceive)
     {
+        //Checksums
         if(sendingChecksum && resending)
         {
             if(resendNum < sentCommands.size())
diff --git a/settingswindow.ui b/settingswindow.ui
index 0fdc7d6..347a03f 100644
--- a/settingswindow.ui
+++ b/settingswindow.ui
@@ -263,7 +263,7 @@ feedrate</string>
      </layout>
     </widget>
    </item>
-   <item row="2" column="1">
+   <item row="2" column="0" colspan="2">
     <widget class="QDialogButtonBox" name="buttonBox">
      <property name="orientation">
       <enum>Qt::Horizontal</enum>