title: c# writing to a file without full path
body: <p>If I use this code</p>
  
  <pre><code>File.AppendAllText("C:/Users/Michael/Documents/Visual Studio 2010/Projects/PuzzleGame/PuzzleGame/PuzzleGameContent/player.TXT", "hi");
  </code></pre>
  
  <p>The file will save and add "hi" to the end of it. However, if I do something like this:</p>
  
  <pre><code>File.AppendAllText("player.TXT", "what is good?");
  </code></pre>
  
  <p>The file won't have a "what is good?" at the end of it. I can read files just fine using only the "player.TXT" filename but I can't write to a file using only that. Can anyone help me?</p>