hi devillar
might be memory related – what's your ram size? how 'heavy' are the photos?
try to open it with low resolution preview ('file' → 'preferences' → 'tools' → 'image frame properties' → 'low resolution preview')
or without displaying the images (uncheck: 'file' → 'preferences' → 'display' → 'show images').
if nothing helps, upload the .sla file (without images, fonts and profiles) – i'll check then if i can open it…
utnik