That sucks, it's using a built in function in the game framework I'm using (libgdx) to get text input from the platform. It works for me, and apparently (hopefully) most other users on Windows, so I'm not sure what is going on with this for you. Which version of windows are you using?
One thing to be on the lookout for is the magic key input window, it may be small and hiding behind the Galimulator window. Try Alt-Tabbing to find it.