Magpie & Delicious: Not parsing feed...

Versions:

EE 1.6.8 Magpie 1.4

Feed:

Delicous feed (validates)

Error:

Warning: MagpieRSS: Failed to fetch http://feeds.delicious.com/v2/rss/sirvin14?count=50. (HTTP Response: HTTP/1.1 999 Unable to process request at this time – error 999 ) in /…<snip>…/system/plugins/pi.magpie.php on line 1390 Notice: Trying to get property of non-object in /…<snip>…/system/plugins/pi.magpie.php on line 105

Template:

{exp:magpie url="http://feeds.delicious.com/v2/rss/sirvin14?count=50" limit="50" refresh="10"}
    <ul class="bull">
        {items}
            <li><a href="http://{link}" rel="external">{title}</a></li>
        {/items}
    </ul>
{/exp:magpie}

Any tips?

I did notice that the official plugin download page promotes the use of v1.3.4.

Wondering if I should downgrade to v1.3.4?

Thanks! Micky