This sample demonstrates that the combobox items are not reliably responding to clicks in nightly build R5599. Try selecting items from the list, and observe that not every click is registered for both SWF and DHTML.

<canvas id="maincanvas" width="100%" height="100%" validate="false" debug="false" proxied="false" bgcolor="0xEFF1E8">
<debug x="650" y="200" width="800" height="400" fontsize="12"/>
<combobox x="100" y="100" min_width="200">
<textlistitem>Text list item #1</textlistitem>
<textlistitem>Text list item #2</textlistitem>
<textlistitem>Text list item #3</textlistitem>
<textlistitem>Text list item #4</textlistitem>
<textlistitem>Text list item #5</textlistitem>
<textlistitem>Text list item #6</textlistitem>
<textlistitem>Text list item #7</textlistitem>
<textlistitem>Text list item #8</textlistitem>
<textlistitem>Text list item #9</textlistitem>
<textlistitem>Text list item #10</textlistitem>
</combobox>
</canvas>