There seems to be a problem as follows:
* Do a 'Find in Files' search using text that will be found multiple times in a single file.
* When the messages window opens and shows the results, double-click the first item to go to the line where the text was found.
* Change the text that was found on that line.
* Double-click the next item in the Messages window (which should reference the same file).
* The cursor does not move to that line.
It seems as though any Messages entries that reference a line that is below the line that is changed will work, so if you change the line referenced by the n'th item in the messages window, the n'th+1, etc, item cannot be found by double-clicking its messages entry.
This makes it a pain if you were doing a search for items in order to change them. You basically have to do multiple searches.