Hi GW, thanks for the prompt reply.

Well opened a new project and can drag and drop images with impunity, added a few boxes, lines, text boxes etc to make it interesting and it seems fine, as you say seems like some form of corruption, strange its only started doing it since I did the upgrade... works till I do some other action and go back to bringing an image in, then black and white until I reboot the programme, a bit of a pain.