Permanently enable just my code

I'm using visual studio 2010, and every time I open it, "just my code" under tools->options->debugging is disabled. Does anyone know how to permanently enable this?

I have the following extensions enabled if this makes any difference:

.NET reflector visual studio extension; NuGet package manager; process template editor; productivity power tools; specflow; WITDesigner

How do I turn off Edit and Continue?

On the Tools menu, choose Options. In the Options dialog box, select Debugging > General. To enable, select Enable Edit and Continue. To disable, clear the checkbox.

How do I disable Debug mode in Visual Studio?

To end a debugging session in Microsoft Visual Studio, from the Debug menu, choose Stop Debugging.

After some further digging around on google, it turns out that this is cause by the .NET reflector plugin. After disabling reflector, just my code remains enabled when VS is closed and opened.