I'm going to phone BenQ US (which is the same number as BenQ Canada) on Monday evening to see if they know anything about a September 2007 firmware, but I honestly don't hold out much hope of them knowing it exists let alone saying they have it and can update existing older FP2421W units. Particularly since a few weeks ago they were adamant that no second firmware was coming (the 1:1, of course, being the first and only update here).