text display using glulookat

How do you keep the text displayed in the same place on the screen when you use glulookat to move around the world. Before I was using glTranslatef to move around and I would just put my text before I moved, but now it isn’t working that way

gluPerspective()
gluLookat()
DrawFency3d()
glOrtho()
DrawText()

This way the text is completely independent from your 3d stuff.