🚀 go-pugleaf

For the files you work on, use File > Preferences and clear the Network File Locking button. 

Next, search your hard drive and delete all instances of *.lck files (files associated with FrameMaker file locking). 

What happens if you exit FrameMaker improperly, or it crashes, sometimes the *.lck file hangs around and is not deleted as it normally would be. This file prevents multiple instances of the same document from being opened. When you try to open the file in question, the *.lck makes FrameMaker think the *.fm is already open, hence the prompt.  

I suspect what is also happening is that by opening the document for editing, you are not clearing the *.lck file, so it hangs around for you and waits until the next time you try to open the file. Had you reset the lock, the *.lck would have gone away. Of course, if the FM 6 book had an index that was worth a damn, you'd have been able to figure out the problem <g>. 

Cheers, 

Sean