At 04:07 AM 5/13/98 -0700, you wrote:

Agreed.  "Wa" is a topic marker, "ga" a subject marker.

 Watakushi wa Nihongo ga wakarimasen. 
 (I don't understand Japanese.)

"Ga" is also a subject marker, implying, as I stated before, more
emphasis than "wa."

-Deuce