I've been trying to run the client app to access the World of Minecraft servers. The program lets me log in, get the server list, and hit the 'go' button to start the Minecraft game itself, but at that point, the program pretty much stops doing anything (see the attached file for a screen picture).

It worked fine the first time, and I could even resize the game-display panel, but now it won't ever start.

Files: 

minecraft_crash.jpg