Error compiling movie: Unknown error

Hi all,

Just recently pulled out a copy of Premiere Elements 13 I had lying around and tried to use it to edit a video. Everything works smoothly...until I try to render. The moment it tries to do anything, it gives up with the message: "Error compiling movie: Unknown error".

I've read through various other threads on this issue, but none of them quite match mine - this is a very short project (1 minute 30 seconds), I do have plenty of disk space, there's not much intermixing of weird file formats (MTS for camcorder video, AVI from After Effects for a single animation), and I did make the necessary sacrifices of Coke and pizza to the computer overlords. I've tried rendering tiny work areas, disabling auto-save...the works. No such luck. Does anyone have any suggestions on how to fix this?

Specifications:

As mentioned, Premiere Elements 13

Windows 7 Ultimate SP1

Core i7-4790 3.6 GHz

NVIDIA GeForce GTX 745

24 GB RAM

3 TB HDD, about 300 GB available for this (I dual boot and Windows is the secondary)

Thanks in advance!