diff --git a/ActionBar/TemperatureWidgetBase.cs b/ActionBar/TemperatureWidgetBase.cs
index 6d5b14325..4a74560eb 100644
--- a/ActionBar/TemperatureWidgetBase.cs
+++ b/ActionBar/TemperatureWidgetBase.cs
@@ -151,7 +151,6 @@ namespace MatterHackers.MatterControl.ActionBar
             {
                 preheatButton.Visible = true;
             }
-            preheatButton.Visible = true;
         }
 
         void onLeaveBounds(Object sender, EventArgs e)
diff --git a/MatterControl.sln b/MatterControl.sln
index 8d0354caf..2e6d1613c 100644
--- a/MatterControl.sln
+++ b/MatterControl.sln
@@ -1,5 +1,5 @@
 
-Microsoft Visual Studio Solution File, Format Version 12.00
+Microsoft Visual Studio Solution File, Format Version 11.00
 # Visual Studio 2010
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MatterControl", "MatterControl.csproj", "{0B8D6F56-BD7F-4426-B858-D9292B084656}"
 	ProjectSection(ProjectDependencies) = postProject
@@ -58,7 +58,7 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MatterSlice", "..\MatterSli
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Launcher", "Launcher\Launcher.csproj", "{3DF4CB3D-9A03-4256-9A81-70523AAD828B}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MatterControlAuth", "..\MatterControlAuth\MatterControlAuth\MatterControlAuth.csproj", "{5258F3E5-A1BB-4BCA-B899-C5CD6157D0A3}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MatterControlAuth", "..\MatterControlAuth\MatterControlAuth\MatterControlAuth.csproj", "{239CC6B1-537C-4998-9AA9-3372A3464498}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -412,18 +412,18 @@ Global
 		{3DF4CB3D-9A03-4256-9A81-70523AAD828B}.Release64|x64.ActiveCfg = Release64|Any CPU
 		{3DF4CB3D-9A03-4256-9A81-70523AAD828B}.Release64|x64.Build.0 = Release64|Any CPU
 		{3DF4CB3D-9A03-4256-9A81-70523AAD828B}.Release64|x86.ActiveCfg = Release64|Any CPU
-		{5258F3E5-A1BB-4BCA-B899-C5CD6157D0A3}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{5258F3E5-A1BB-4BCA-B899-C5CD6157D0A3}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{5258F3E5-A1BB-4BCA-B899-C5CD6157D0A3}.Debug|x64.ActiveCfg = Debug|Any CPU
-		{5258F3E5-A1BB-4BCA-B899-C5CD6157D0A3}.Debug|x86.ActiveCfg = Debug|Any CPU
-		{5258F3E5-A1BB-4BCA-B899-C5CD6157D0A3}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{5258F3E5-A1BB-4BCA-B899-C5CD6157D0A3}.Release|Any CPU.Build.0 = Release|Any CPU
-		{5258F3E5-A1BB-4BCA-B899-C5CD6157D0A3}.Release|x64.ActiveCfg = Release|Any CPU
-		{5258F3E5-A1BB-4BCA-B899-C5CD6157D0A3}.Release|x86.ActiveCfg = Release|Any CPU
-		{5258F3E5-A1BB-4BCA-B899-C5CD6157D0A3}.Release64|Any CPU.ActiveCfg = Release|Any CPU
-		{5258F3E5-A1BB-4BCA-B899-C5CD6157D0A3}.Release64|Any CPU.Build.0 = Release|Any CPU
-		{5258F3E5-A1BB-4BCA-B899-C5CD6157D0A3}.Release64|x64.ActiveCfg = Release|Any CPU
-		{5258F3E5-A1BB-4BCA-B899-C5CD6157D0A3}.Release64|x86.ActiveCfg = Release|Any CPU
+		{239CC6B1-537C-4998-9AA9-3372A3464498}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{239CC6B1-537C-4998-9AA9-3372A3464498}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{239CC6B1-537C-4998-9AA9-3372A3464498}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{239CC6B1-537C-4998-9AA9-3372A3464498}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{239CC6B1-537C-4998-9AA9-3372A3464498}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{239CC6B1-537C-4998-9AA9-3372A3464498}.Release|Any CPU.Build.0 = Release|Any CPU
+		{239CC6B1-537C-4998-9AA9-3372A3464498}.Release|x64.ActiveCfg = Release|Any CPU
+		{239CC6B1-537C-4998-9AA9-3372A3464498}.Release|x86.ActiveCfg = Release|Any CPU
+		{239CC6B1-537C-4998-9AA9-3372A3464498}.Release64|Any CPU.ActiveCfg = Release|Any CPU
+		{239CC6B1-537C-4998-9AA9-3372A3464498}.Release64|Any CPU.Build.0 = Release|Any CPU
+		{239CC6B1-537C-4998-9AA9-3372A3464498}.Release64|x64.ActiveCfg = Release|Any CPU
+		{239CC6B1-537C-4998-9AA9-3372A3464498}.Release64|x86.ActiveCfg = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE