Just had a problem with my PC that I knew I’d experienced before – a quick check on a discussion board I float around, and the answer was found.
So here it is, before it happens again (it’s bound to)…
In Windows XP, displaying thumbnails, the filename is not shown.
If you enter a folder or switch to it’s thumbnail view whilst holding down shift then it hides the filenames. You just do the same again to reveal them.
Simple really. But try Google’ing for it (clue – I couldn’t find an answer!