Unwanted Changes

I am using Articulate Presenter 09 and I am experiencing some unwanted issues.  First, after successfully publishing the same course multiple times over the past 2 weeks, I discovered yesterday my slide titles had been completely changed/overwritten in the slide properties screen.  The titles were repeats of titles I have existing in a branching scenario later in the couse so I had for example 8 slides now randomly titled "Objection Type 3".  After fixing that issue and updating some sound files I once again had one slide which again reverted back to the name "Objection Type 3" ADDITIONALLY I also had about 8 or so slides which are now in the locked position and the only slides that I had originally locked are in my branching scenarios.   What is causing this gremlin-like activity to occur?   It is extremely frustrating as I am very close to the go live point and I am now scrambling to fix random changes not made by me.  The only other difference in process has been that I recently renamed the file to reflect two version changes (e.g. course1_v2, course1_v3).  I am hoping someone can help!  I'm a long time Articulate user but this one has me stumped.  Thanks.