Hi Xaver, This option seems to just limit the total size of what PTE will display on screen. (as a windowed mode would - this option actually disappears in windowed mode) It has not, whether activated or not, changed the resizing. The funny thing is that, if i create a slideshow with PTE 5, witha rpoject option of not resizing images and if i open this project with Pte 6? then the images in the slides created with PTE 5 do not upscale but any new one i add is resied (upscaled).... regards, michel