Doom 3 not syncing - though it did before!

[sa.levack]

Hi Guys - I'm trying to run Doom 3 on 3pc's. Until now have had no problem with saves being held in the cloud and accessible when and where I want them. Now have a situation where 1 pc has my latest saves and can't/won't let the others access it, even though it tells me it has 'synced' the game, so they should be available to all the other machines

Any ideas - as usual, don't want to waste x number of hours of my life doing what I've already done!
Cheers