 issue in PaintInit. The problem showed up with
     the following lines:
     <pre>
     TF1 *f = new TF1("f","exp(-x)*exp(x-2.)",0.,2.0);
     f->Draw();
     </pre>
</li>
<li> For 2D histograms plotted with option <tt>TEXT</tt>, it is possible to
     plot empty cells by calling <tt>gStyle->SetHistMinimumZero()</tt>.
</li>
<li> An empty frame is drawn when an empty 1D histogram is painted with log
     scale along the Y axis and when a 2D histogram is painted with log scale
     along the Z axis.
</li>
<