ClickOnce/VS2005 Version Number Issue

This is not severe, but still annoys me every time that it comes up.  Look at this screenshot:

Here I have the project set up so that ClickOnce will automatically increment the revision number after each publish.  Well, something apparently is not working,  because it seems that at least once a day, I get "Version already exists on the server" errors.

Blah!  Is it me, or VS2005 that's at fault?  I'm going to blame the latter, since I never make mistakes.