[X4U] Tiger Finder Behavior

[Jon Warms]

I have 1.33 GHz PowerBook running 10.4.1. Everything works fine  
except for one Finder glitch.

I have it set up so that Finder windows display both the sidebar and  
the toolbar. Also, in Finder>Preferences ...>Sidebar, I have ticked  
all nine choices.

When I plug my little thumb drive into a USB port, it rapidly mounts  
and appears in the top half of the sidebar - normal, correct behavior.

Two of my more critical folders are folder X, which is on the hard  
drive, and folder Y, on the thumb drive. I've dragged the folder X  
icon to the sidebar and it stays there, accessible - as it should be  
- just by clicking once.

I want Y to be permanently in the sidebar as well, so - when the  
thumb drive is mounted - I can access its files with just a click.  
(And Finder will tell me if I try to access the folder without the  
thumb drive mounted.) So I mounted the thumb drive, and opened the  
folder than encloses folder Y. As expected, when I dragged folder Y  
to the sidebar below the line, Y stayed there. And I could access Y  
just by clicking in the sidebar. The problem is that when I ejected  
the thumb drive, the Y icon disappeared. This shouldn't be, should it?

I did this in Panther, and the Y icon stayed on the sidebar,  
regardless of whether the thumb drive was mounted.

Three possibilities:
1) Tiger behavior is the correct behavior; I just want too much.
2) Tiger should behave like Panther; there's a bug.
3) My Finder preferences are mucked up and causing anomalies.