diff --git a/GUI/MainForm.Designer.cs b/GUI/MainForm.Designer.cs
index dad4d63..a78fc9f 100644
--- a/GUI/MainForm.Designer.cs
+++ b/GUI/MainForm.Designer.cs
@@ -92,7 +92,7 @@ namespace OpenHardwareMonitor.GUI {
       this.startMinMenuItem = new System.Windows.Forms.ToolStripMenuItem();
       this.minTrayMenuItem = new System.Windows.Forms.ToolStripMenuItem();
       this.startupMenuItem = new System.Windows.Forms.ToolStripMenuItem();
-      this.toolStripMenuItem3 = new System.Windows.Forms.ToolStripSeparator();
+      this.separatorMenuItem = new System.Windows.Forms.ToolStripSeparator();
       this.temperatureUnitsToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
       this.celciusToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
       this.fahrenheitToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
@@ -362,7 +362,7 @@ namespace OpenHardwareMonitor.GUI {
             this.startMinMenuItem,
             this.minTrayMenuItem,
             this.startupMenuItem,
-            this.toolStripMenuItem3,
+            this.separatorMenuItem,
             this.temperatureUnitsToolStripMenuItem,
             this.toolStripMenuItem4,
             this.hddMenuItem});
@@ -395,8 +395,8 @@ namespace OpenHardwareMonitor.GUI {
       // 
       // toolStripMenuItem3
       // 
-      this.toolStripMenuItem3.Name = "toolStripMenuItem3";
-      this.toolStripMenuItem3.Size = new System.Drawing.Size(204, 6);
+      this.separatorMenuItem.Name = "toolStripMenuItem3";
+      this.separatorMenuItem.Size = new System.Drawing.Size(204, 6);
       // 
       // temperatureUnitsToolStripMenuItem
       // 
@@ -580,7 +580,7 @@ namespace OpenHardwareMonitor.GUI {
     private System.Windows.Forms.ToolStripSeparator toolStripMenuItem2;
     private System.Windows.Forms.ToolStripMenuItem exitToolStripMenuItem1;
     private System.Windows.Forms.ToolStripMenuItem minTrayMenuItem;
-    private System.Windows.Forms.ToolStripSeparator toolStripMenuItem3;
+    private System.Windows.Forms.ToolStripSeparator separatorMenuItem;
     private System.Windows.Forms.ContextMenuStrip sensorContextMenuStrip;
     private System.Windows.Forms.ToolStripMenuItem startMinMenuItem;
     private System.Windows.Forms.ToolStripMenuItem startupMenuItem;
diff --git a/GUI/MainForm.cs b/GUI/MainForm.cs
index cc55a29..3cff321 100644
--- a/GUI/MainForm.cs
+++ b/GUI/MainForm.cs
@@ -155,6 +155,15 @@ namespace OpenHardwareMonitor.GUI {
         UnitManager.TemperatureUnit == TemperatureUnit.Celcius;
       fahrenheitToolStripMenuItem.Checked = !celciusToolStripMenuItem.Checked;
 
+      // Hide the system tray and auto startup menu items on Unix
+      int p = (int)System.Environment.OSVersion.Platform;
+      if ((p == 4) || (p == 128)) {
+        startMinMenuItem.Visible = false;
+        minTrayMenuItem.Visible = false;
+        startupMenuItem.Visible = false;
+        separatorMenuItem.Visible = false;
+      }
+      
       if (startMinMenuItem.Checked) {
         if (!minTrayMenuItem.Checked) {
           WindowState = FormWindowState.Minimized;
diff --git a/Hardware/CPU/CPUGroup.cs b/Hardware/CPU/CPUGroup.cs
index 0aaa2eb..cea3524 100644
--- a/Hardware/CPU/CPUGroup.cs
+++ b/Hardware/CPU/CPUGroup.cs
@@ -101,6 +101,11 @@ namespace OpenHardwareMonitor.Hardware.CPU {
     }
 
     public CPUGroup() {
+      // No implementation for cpuid on Unix systems
+      int p = (int)System.Environment.OSVersion.Platform;
+      if ((p == 4) || (p == 128)) 
+        return;
+      
       if (!WinRing0.IsCpuid())
         return;
 
@@ -158,7 +163,9 @@ namespace OpenHardwareMonitor.Hardware.CPU {
     }
 
     public string GetReport() {
-
+      if (threads == null)
+        return null;
+      
       StringBuilder r = new StringBuilder();
       
       r.AppendLine("CPUID");