On some pages, I have weird images (like an image from an old scratched tape of an image mixed with other images). Even if I reload the page, I still see those images instead of the real images. That happened occasionally. Is it a hard-disk failure (sign that I have to change it ?) or a software failure ?
Here are some examples from one particular page:
Original:
Corrupted:
Original:
Corrupted:
Original:
Corrupted: