tick and axis label hiding

Hi all,

I'm seeing some unexpected behavior when trying to hide a tick label, which I like to do with ganged plots. When I attempt this, however, it seems the axis label is no longer drawn. For example,

x = arange(5)
ax = subplot(111)
ax.plot(x, x)
xtl = ax.get_xticklabels()

will correctly not draw the leftmost x tick label, but it won't draw the axis label ('foo') either. Subsequently issuing ax.get_xaxis().get_label().set_visible(True) doesn't help. Any thoughts?