Set Visual Studio Tabs To Show Filenames

I've looked all over and can't figure out how to set the document tabs to show the filename of the file 'loaded' in the tab. On my installation, Visual Studio 2005 shows part of the path, some dots, and the last couple letters of the filename, so I've no clue what files are open. How do you configure so you don't have to work blindfolded?

Here, apparently, is a sample of what it should look like:
http://blogs.msdn.com/saraford/archive/2004/05/14/132065.aspx
...