[SDL] mingw mouse update failure

[grovenjl at rose-hulman.edu]

I'm using SDL in a mingw application, and the mouse coordinates are not
being updated.  They seem to be set once the application is started, and
further calls to SDL_GetMouseState always return the same value.  I'm
using SDL following the directions given here:
http://www.spacejack.org/games/mingw/mingw-sdl.html .  Has anyone had a
problem like this?

System specs:
win2k
g++ 3.2
sdl-1.2.5 mingw version (pre-compiled)

PS, I'm not on the list, so please reply-to-all so I get to see the
answers :)