Chris Muller uploaded a new version of System to project The Trunk:
http://source.squeak.org/trunk/System-cmm.415.mcz

==================== Summary ====================

Name: System-cmm.415
Author: cmm
Time: 24 January 2011, 8:39:39.36 pm
UUID: 8509ee64-a316-48cf-b67f-ac09470744d0
Ancestors: System-dtl.414

- Fix from Connectors.

=============== Diff against System-dtl.414 ===============

Item was changed:
  ----- Method: Preferences class>>showBoundsInHalo (in category 'standard queries') -----
  showBoundsInHalo
  	^ self
  		valueOfFlag: #showBoundsInHalo
+ 		ifAbsent: [true]!
- 		ifAbsent: [false]!

Item was changed:
  ----- Method: ReferenceStream>>project (in category 'writing') -----
  project
  	"Return the project we are writing or nil"
  
  	(topCall respondsTo: #isCurrentProject) ifTrue: [^ topCall].
  	(topCall respondsTo: #do:) ifTrue: [1 to: 5 do: [:ii | 
+ 		((topCall at: ii ifAbsent: [ ^nil ]) respondsTo: #isCurrentProject) ifTrue: [^ topCall at: ii]]].
- 		((topCall at: ii) respondsTo: #isCurrentProject) ifTrue: [^ topCall at: ii]]].
  	^ nil!