All is fixed now... there was a hardware problem with one of the disks which meant that the machine it was mounted on wouldnt even let me log in, let alone run the scripts. Being at the other end of the country (Cairns) for work didnt help much either...
Seems to be fixed. Now all i need is some wind and a new 6.5 (mine blew apart at Rye a few weeks back) and all will be right with the world.
PS. Off to Hotham tomorrow with no internet access at till Sunday night... whats that about Murphys Law again?