[wp-hackers] Image error "empty string or invalid image in..."

[Diana K. Cury]

I have a page listing 1185 images/posts types(!) and once and a while the error show up after some posts are listed:

http://img441.imageshack.us/img441/3007/cidimage002.jpg

Too much itens/page?
Image lacking in some post?
Memory or space issues?

I advised the user to reduce the post displaying, but not sure if this matter at all.