Chris Muller uploaded a new version of Tools to project The Trunk:
http://source.squeak.org/trunk/Tools-cmm.209.mcz

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

Name: Tools-cmm.209
Author: cmm
Time: 12 March 2010, 12:09:05.12 am
UUID: 4b0cd6e8-3f1c-4388-94d4-6e0657a49de5
Ancestors: Tools-cmm.208

When removing message from a MessageTrace, maintain the selection index.

=============== Diff against Tools-cmm.208 ===============

Item was changed:
  ----- Method: MessageTrace>>removeMessageFromBrowser (in category 'building') -----
  removeMessageFromBrowser
  	| indexToSelect |
+ 	"Try to keep the same selection index."
+ 	indexToSelect := (messageSelections indexOf: true) max: 1.
  	self selectedMessages do: [ :eachMethodReference | self deleteFromMessageList: eachMethodReference ].
  	self deselectAll.
- 	indexToSelect := messageSelections 
- 		ifEmpty: [ 0 ]
- 		ifNotEmpty: [ (messageSelections indexOf: true) max: 1 ].
  	messageSelections ifNotEmpty:
  		[ messageSelections 
  			at: (indexToSelect min: messageSelections size)  "safety"
  			put: true ].
+ 	anchorIndex := indexToSelect min: messageSelections size.
- 	anchorIndex := indexToSelect.
  	self 
  		messageListIndex: anchorIndex ; 
  		reformulateList!