I currently haven't got access to our Catalyst, but will send an image through when I get a chance!

We have, however, tried it with numerous images and videos with different resolutions and codecs and are still encountering the same problem. All images are being used without effects, and none of the images are in theory being scaled massively!

It seems like the resolution in Catalyst is no where near the same as the main desktop, even though Catalyst is taking its information from the system preferences.

When I'm back with it, I will have a look at the codecs of the files and see if these are not quite right (I'd be interested to see, as they have come from lots of different sources!).

Until then I'd be grateful for any more help you'd be able to offer.

Many thanks,

Ben