In thumbnail view, a folder lost files and subfolders names?

I’m running WinXP and a folder where I store my images, files an other folders, lost all the names when in Thumbnail view, but they appear in any other view. The structure is “C:/abc/images”
The odd thing is that the names dissapear only in that level, folders within “Images” display the names of the files or folders correctly when in thumbnail view. I tried creating another folder at the same level and transferring all files to that folder, then deleting the original “images” folder; but when I’ve renamed the new folder to images, the problem continued… How do I solve this without formatting windows?