Has anyone encountered same problem. 800x600 pics are not getting displayed on my w800i. when i try to open them thru file manager only a black screen is shown but with the options (horizontal etc) are available. when i do it horizontal still i get only black screen. same happens with 1024x768 pictures too. But once i restarted the phone and the 1024x768 pics got displayed but still i am not able to set them as full screen wallpaper.
The same things happens in my w550i too ...the pics are displayed as thumbnails but when opened there is only a black screen both in vertical & horizontal mode