The only change was the uptdate of leopard from 10.5 to 10.52... I've trawled the site you mentioned.. and built a workaround from the myriad suggestions on offer. I think I know more about this fix now than Apple themselves..
Thanks for your pointer.
Rgds
When I first ran my new MacPro with Leopard, it automatically found all the windows shared machines on my peer to peer network. Niftily in the tool bar of all finder windows..a sharing menu and a subset detailing all of the machines. All was well.
Yesterday, this vanished.. :-( It seems at...