I finally took the plunge and ordered the C5 beta. It suddenly occurred to me (all to late) that we are paying Eovia to do their testing for them! Nice one Eovia - as long as there are mugs like me around you'll definately stay in business! Anyway, just wondered if anyone else has had this problem. Load in a predefined scene. go to the Render tab and select the output tab. Now try to change the size of the output image. My version of C5 just bombs out to the desktop. All work lost and no errors. Is this just on my machine or has anyone else had similar problems?