FMS 2 is awful and I'm amazed that it was approved/certified for use in its current state. It is bug-ridden - see your FM for a list of them - and it achieves virtually nothing more than the old FMS 1. I'm told we HAD to incorporate it into our fleet as FMS 1 was no longer to be supported, being the equivalent of Windows 3.1 technology, and as for 'software upgrades' to eradicate the problems/shortcomings, don't hold your breath......we've been waiting over a year and they ain't here yet.