Check the application your pictures are in. You might have accessibiligy options changed there.
Help! A few weeks ago I noticed on my laptop that the desktop background image was showing as enlarged. I changed it to different images but every time the background would show as one area (the top left) of the image enlarged and I can't figure out why.
I also noticed the position button on the desktop display properties menu is greyed out, it is set as 'centre' and because it is disabled I cannot change this.
If I use one of the default windows xp background options, eg. Tulips, it tiles it on screen (4 to the screen).
I have had no major software or computer changes during the last month when I noticed this problem, I run antivirus and everything seems fine and no virus alerts or incidents.
I tried changing the screen resolution but made no difference, the desktop background still appears enlarged. It makes no difference whether I select images from the display properties & browse or from right click & set as desktop background from an image directly. I can't figure this out!