I have a computer that uses Windows XP Professional.

Yesterday, I tried to change my wallpaper because I became bored of my current one. I got the "display properties" window open, and then opened up "browse" to find one. However, as soon as I selected the file, both windows froze and didn't respond. I had to close them.

I tried it again today, even choosing different files, but the same issue occurred.

Can someone explain why this is happening? Thanks.