today, out of nowhere my primary inbox folder renamed itself. others have not, but this one did. at first I thought it disappeared but I eventually found it way down in my list...

I use spaces at the beginning of many folders to push the to the top of the list. I've been doing this with finder folders for as long as I can remember and with office email apps since at least entourage 2004 (I think I used outlook express before that). having a couple folders with one space moves them above the 30 or so others that are dropped inside organizational folders. then another 3 or 4 get two spaces, a couple get three spaces, and two main "inbox" folders that separate work from personal emails sat at the top with four spaces. this identity has been in use for at least 12 years, rebuilt a handful of times and updated from entourage version to version to outlook a couple weeks ago. 

I cannot see this as being anything by design, as since I've switched to 10.9 two weeks ago, I've created new folders with spaces. just today, mid-day, it removed existing spaces all on its own (it had changed when I switched back to outlook) and I had not attempted to edit the folder name myself via the right-click or regular double click or delayed clicks or returns. I just came back to it like this.

I have no system or outlook updates available. I've relaunched, rebooted, and rebuilt my database, all with no luck.

I'm not the only one as this thread explains my same issue as well: http://answers.microsoft.com/thread/77e59216-c5dc-492a-846b-0c61d9a429a9

does anyone have any input regarding how I might fix it? the only thing I can think of would be to restore an older outlook db from time machine, export the mailbox that I want to the desktop and then attempt to import it in hopes that it holds the name with spaces as a folder. I'm not confident that it'll work and it'll be a lot of work to test it so I'm hoping someone else has a better idea?