Hi Al Not sure if this is a bug, but here goes. Looking through the Glamour examples in Pharo4 I come across the Updateable Browser example. This example has a line that, when the collection is greater than 1, shows a list tab, the title of which is List, col size printString. This indeed comes up and shows: 'List: 2' but if you continue to add, it doesn't change. The text will change but not the title. I came across this when I couldn't get my browser to add tabs, even though entity gets updated. Example from Glamour below. | browser collection| collection := GLMAnnouncingCollection new. collection add: 1. browser := GLMTabulator new. browser column: #preview. browser act: [:b | b entity add: (b entity size + 1). b update ] icon: GLMUIThemeExtraIcons glamorousAdd entitled: 'Add an item in the collection'. browser act: [:b | b entity removeLast. b update ] icon: GLMUIThemeExtraIcons glamorousRemove entitled: 'Remove last item from the collection'. browser updateOn: GLMItemAdded from: #yourself; updateOn: GLMItemRemoved from: #yourself. browser transmit to: #preview; andShow: [ :a | a list title: [:col | 'List: ', col size printString ]; *"This isn't updating"* when: [:col | col size > 1 ]. a text title: 'Text'; format: [:col | 'Current collection: ', col printString, '. Add more items to show the list'] ]. browser openOn: collection KR -- Gareth Cox IT Manager/Developer Inspired Org (PTY) Ltd email: gareth@inspired.org <mailto:gareth@inspired.org>