I am not a fan of such placement myself, this was caused by WINE dependencies and just popped out after one of the winesyncs. It could be changed, but i was told this would increase difficulty of each subsequent winesync.

Regards

On 27.10.2010 18:37, Bernd Blaauw wrote:
  I'm a bit surprised this Gecko engine download is present in phase 2
rather than inside the downloader application in phase 3 as some kind of
 'recommended addon'.