unique id numbers

[Wouter]

Hi all,

Normally in stacks  id numbers are unique.
In stack "revPropertyPalette 1" I found 6 instances of id 0 in my copy 
of rev.
This makes the unique id numbers not so unique.
Can one or several controls in different groups with an id of 0 cause 
trouble?

Can someone confirm the following?:

group id 0 of group id 44264 of card id 44066 of stack 
"revPropertyPalette 1" - group id 0
button id 0 of group id 43590 of card id 43591 of stack 
"revPropertyPalette 1" - button "threeD"
field id 0 of group id 43590 of card id 43591 of stack 
"revPropertyPalette 1" - field "revLabel borderWidth"
graphic id 0 of group id 43533 of card id 43544 of stack 
"revPropertyPalette 1" - graphic "New Graphic 1"
image id 0 of group id 45042 of card id 45504 of stack 
"revPropertyPalette 1" - image "Cover"
scrollbar id 0 of group id 43590 of card id 43591 of stack 
"revPropertyPalette 1" - scrollbar "borderwidth control"

TIA
Greetings,
WA