There is a post that has been up on our site since October 7th of 2009, and I've recently noticed that it no longer shows up. When I go into the post from Wordpress to edit it, the original post is still there, but when you view it live and look in the source code, the spot where post copy is usually rendered shows absolutely nothing. Here's the link:

http://www.newdust.com/artist-interview-oberhofer

I had figured at first that maybe the post above it had an unclosed HTML tag, but this couldn't be the case either as back in October this post was live and viewable for weeks.

Any ideas as to why this and only this post no longer renders or pulls from the database?

only think I canthink of is something in the post is causing an issue. Without knowing what the actual post is, there isn't much I can do.

Does it have a shortcode in it and did you update the plugin that control it.
Try swapping to the default theme and see if you can see it.
disable all plugins and see if you can see it.

There's no shortcode used except for the [audio:song.mp3] used to stream audio on the site. This code is used in every post, so I don't think that's it. Here's the original post:

<center><img src="http://www.newdust.com/images/oberhofer.jpg"><br>
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<td valign="center" id="f4f4f4"><p align="justify"><a href="http://www.myspace.com/oberhofermusic">Brad Oberhofer</a> just might be the next big name in indie music. The only problem is you can't find him anywhere. Nobody is talking about him. A Google search of his full name brings up some interesting results, one of which was an <a href="http://www.weeklyvolcano.com/article/4115">article</a> written by the Weekly Volcano last month, other than that there's really nothing. A Google search of simply "Oberhofer" is even more random and depressing. But upon listening to his music you'll have the same urge I immediately had to spread the word as quickly as possible. What's most impressive is that Oberhofer records as a solo artist. His vocals are reminiscent of <a href="http://en.wikipedia.org/wiki/Avey_Tare">Avey Tare</a> with just a hint of <a href="http://en.wikipedia.org/wiki/Britt_Daniel">Britt Daniel</a>, perfectly complemented by his simple yet affective blend of folk, pop, and electronic music. I'll get out of the way and let the music speak for itself. Here are a few of his works with a quick Q&A below:</p></td><td valign="center" id="f4f4f4">[audio:oberhofer_awy-frm-u.mp3]Artist: Oberhofer<br>Song: <a href="http://www.newdust.com/audio/oberhofer_awy-frm-u.mp3">Awy Frm U.mp3</a><br>[audio:oberhofer_dead-girls-dance.mp3]Song: <a href="http://www.newdust.com/audio/oberhofer_dead-girls-dance.mp3">Dead Girls Dance.mp3</a>[audio:oberhofer_i-could-go.mp3]Song: <a href="http://www.newdust.com/audio/oberhofer_i-could-go.mp3">I Could Go.mp3</a></td></tr>
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<td valign="center" id="ffffff"><font color="#5BA0B5"><b>Newdust:</b></font> What instrument did you start out on, and how long have you been making music?
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<td valign="top" rowspan="12"  id="ffffff"><center><a href="http://www.newdust.com/images/oberhofer3.jpg" target="_blank"><img src="http://www.newdust.com/images/oberhofer3-2.jpg"></a><br><br><a href="http://www.newdust.com/images/oberhofer_live1.jpg" target="_blank"><img src="http://www.newdust.com/images/oberhofer_live1-2.jpg"></a><br><br><a href="http://www.newdust.com/images/oberhofer_live2.jpg" target="_blank"><img src="http://www.newdust.com/images/oberhofer_live2-2.jpg"></a></center></td></tr>
<tr><td valign="center" id="f4f4f4"><font color="#663333"><b>Brad Oberhofer:</b></font><br>I started writing music as a competitive freestyle rapper in about fifth grade.  It's been about nine years.</td>
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<td valign="center" id="ffffff"><font color="#5BA0B5"><b>ND:</b></font> How do your live performances compare to the recorded stuff? 
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<tr><td valign="center" id="f4f4f4"><font color="#663333"><b>BO:</b></font><br>It completely varies.  I've played guitar with my hands and drums with my feet, with only a drummer, with another guitarist and a drummer, with a string section, and a few other formats.  Recorded music and live shows have become completely separate art forms, so I try to add things to live shows that aren't in my recordings and vice-versa. </td>
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<td valign="center" id="ffffff"><font color="#5BA0B5"><b>ND:</b></font> Who are some of your favorite artists right now (with records that have come out in the last 2 years)?
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<tr><td valign="center" id="f4f4f4"><font color="#663333"><b>BO:</b></font><br>One record that came out in the past year, <a href="http://www.newdust.com/clues-ex-unicorns-and-arcade-fire" target="_blank">Clues' self titled album</a>.  I haven't been able to stop listening to it, I'd consider it a huge influence.<br><br>I'm really into <a href="http://www.myspace.com/okaytheband">Okay</a>, a project by this guy Marty Anderson.  One of my favorite albums of all time is his "High Road".<br><br>
I also love <a href="http://www.myspace.com/micayomusic">Micachu</a>'s "Jewellery".
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<td valign="center" id="ffffff"><font color="#5BA0B5"><b>ND:</b></font> What records have had the most influence on your sound?
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<tr><td valign="center" id="f4f4f4"><font color="#663333"><b>BO:</b></font><br>As the years go by, the influences change.  For a while it was <a href="http://www.myspace.com/arcadefireofficial">Arcade Fire</a>'s self titled EP, at times that Okay album has had a huge influence, and this summer that <a href="http://www.cstrecords.com/bands/clues/releases">Clues</a> album really affected things.

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<td valign="center" id="ffffff"><font color="#5BA0B5"><b>ND:</b></font> Have you sent the EP to any record labels or are you just gonna stick with the self-promotion gig? 
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<tr><td valign="center" id="f4f4f4"><font color="#663333"><b>BO:</b></font><br>I have given the EP to a few places.  I really just want as many people to hear it as possible.
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<td valign="center" id="ffffff"><font color="#5BA0B5"><b>ND:</b></font> How can fans get a hold of your current stuff, and when can we expect another album?
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<tr><td valign="center" id="f4f4f4"><font color="#663333"><b>BO:</b></font><br>I've been mailing it to people who message me or email me.  I'm also working on ways to sell it online.  I've been coming up with a lot of new material lately, and you could probably expect something in the next three months.  Also, I have a <a href="http://www.myspace.com/oberhofermusic">Myspace page</a>.  The URL, myspace.com/oberhofer, is taken by some man who lives in New Jersey, who by the looks of it, appears to be a pretty nice guy.
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Hopefully that helps.

Have you tried putting that in a new post?
Have you done a db repair and optimized it?