Copy/Paste Functionality Problem in Windows XP & Firefox

Copy/Paste Functionality Problem in Windows XP & Firefox

I am using Windows XP. When I use Firefox browser, select all and copy and then paste it into some application such as OneNote, it only pastes the text (preserves text formatting) but not the images. I have another PC in which it copies both images and text. Both have same version of FF and mostly everything is the same. I think there is some problem with clipboard. Can you suggest what could be the cause?