Lingo - A simple word game in C#

I had 3 hours to spare, and decide to create a word game in C#. Its called Lingo, and is based on a popular TV game show of the same name. The idea is simple:

You have five chances to guess a five letter word, given two letters of the word to guess initially.

It's a simple concept, and if you like word games, would definitely appeal to you. You can get the game as well as the source files from my CodeProject article on the game. The code for the game is pretty straightforward; but if you are a beginner programmer, you can find lots to learn from it (E.g. using files as embedded resources, using a context menu, handling special keys like the arrow keys, CTRL, ALT and so on).

So do have a look, download and play Lingo! And most importantly, let me know what you think.
Enjoy.