title: Why do I keep getting mixed tabs and spaces in a Visual Studio 2010 C# code window?
body: <p>I have just been working on a C# file (Global.asax.cs) in a web application for the last hour or so, and I have been shown the prompt to "tabify" or whatever about four times.  Each time I choose to tabify and save the files, yet at some seemingly random point later on, I get prompted again.</p>
  
  <p>I am using ReSharper, yet this doesn't happen when I code at home, also using ReSharper.  Only at work.</p>