title: NLog can't write log file to disk
body: <p>Good day,
  I am faced with problem. I try NLog, configuration code is listed below</p>
  
  <pre><code>var config = new LoggingConfiguration();
  
  var fileTarget = new FileTarget();
  config.AddTarget("file", fileTarget);
  
  fileTarget.FileName = @"D:\" + filename;
  fileTarget.Layout = @"${date:format=HH\:mm\:ss} ${logger} ${message}";
  
  var rule1 = new LoggingRule("*", LogLevel.Debug, fileTarget);
  config.LoggingRules.Add(rule1);
  
  LogManager.Configuration = config;
  
  Logger logger = LogManager.GetLogger("Example");
  logger.Debug("debug log message");
  </code></pre>
  
  <p>Code was taken from some tutorial. And nothing happened. Log file was not created on disk D. But it was created in project's output directory. I've tried <code>@"C:\" + filename</code>. I was surprised, but log file was there. </p>
  
  <p>Then I've tried to log to <code>@"D:\SomeFolder\" + filename</code> and file also was there. </p>
  
  <p>So, can anybody help me to understand what is wrong with <code>@"D:\" + filename</code>.</p>
  
  <p>P.S. Visual Studio 2013, runned with Administrator's rights. Also, I've tried <code>${basedir}</code>. All was Ok.</p>