Thanks for answering.Yes i resize but no diffs.What i did however tried is to reset the program to original program settings and it came right.Seemingly this need to be done everytime one made changes resizing pictures.
I would guess that in the resizing the 'keep proportions' (or something similar) was not checked. This can mess up the image when you come to Burn or export the project.
Doing a reset would put this setting back to checked.