In 1374 I can reproduce.

My resolution is 1920*1200, and the Navigation toolbar expands here depending on what node is selected in the Media Tree. Additionally the Navigation toolbar can't be detached from the interface into it's own window like the other toolbars.

[quote="Lowlander"]I have Now Playing node selected (ie. Navigation bar only has 2 elements) and maximized MM so there is ample space, but it is a no go here on XP. There is no way the Navigation bar is going to the Menu/Tab bar here.[/quote]
What's your screen resolution? For clarification: it seems the nav toolbar takes the same amount of space regardless of what it's showing, so fitting it into somewhere is more dependant on the screen size and available space.

I have Now Playing node selected (ie. Navigation bar only has 2 elements) and maximized MM so there is ample space, but it is a no go here on XP. There is no way the Navigation bar is going to the Menu/Tab bar here.

I can get the nav bar into the tab area in XP mode. I think it's a matter of having enough screen space for it to fit.

Related Mantis entry: http://www.ventismedia.com/mantis/view.php?id=7204

Just noticed it can't be put in other places like the Media Tree or Now Playing either.

Also right click on any toolbar doesn't work when they're not located in the default toolbar area.

All toolbars can be moved to the top bar where the main menu and tabs are located (just found this out and I'm thrilled) except the Navigation toolbar.

Tested on skinned 1357 on XP. Can anyone reproduce (might need XP to reproduce).