gdm login does not appear under "who"

[Jason Pepas <j.pepas@mail.utexas.edu>]

I have noticed that if I log into gdm, I do not show up as being logged in 
via commands like "who" and "w".

not only that, but if I open up a konsole, I am still "not logged in".  
However, opening up an xterm will list me under "who".

is this normal / expected behavior?

-jason