So, the trace / profile ran without a hitch last night. The "extra" backup job is being kicked off by the SQL VSS writer. What I *THINK* may be causing this is our Data Protection Manager system. The DPM is configured to backup some of the DBs on this particular server (all the ones in Simple Recovery [Master, MSDB, Model]) and some WSS DBs from Team Foundation Server (which are in Full Recovery)

I removed the WSS DBs from the DPM schedule, and added them to my Agent backup jobs (DB and TLog backups,) so I'll see what happens tonight with this.

Thanks everyone!

Jason