[Plugin: upPrev] Duplicate Output with YARPP

I have upPrev 3.3.1 installed, displaying with YARPP 3.5.1 and I’m getting two instances of the identical output (one in the upPrev box as normal, and another at the bottom of the page).

In the source code, one of the instances is wrapped in <div id=”upprev_box”> code and the other is not (which is directly above it). The problem goes away when I disable upPrev however.

Any ideas on why this may be happening?

http://wordpress.org/extend/plugins/upprev/