texture loading time

it seems like panda only loads texture when i look at them. Is there a way to force loading of the textures? Its annoying when the game loads and then you look at a new ship and it takes .1 sec to process every thing. I even see it for a split second with wrong texture on it. Very noticeable when frame rate is low about 5fps.

node.prepareScene(base.win.getGsg())

See:
http://panda3d.org/manual/index.php/FAQ

David