Finn is one of our clients - so I have to advise caution, especially if he is going to shell out £300 on a product where I have see it not work as expected.... potentially he may be using the same macs that I did...

I agree, there may be some version conflict - I will check on this next time I'm re-prepping a number of these systems.

I am happy to see that so many people are using VNC successfully - However, I would be negligent if I advised a client that certain technology or software works 'perfectly' if I have had experience to the contrary...