[Arkady]

There may not be anything you can do about this and maybe it only happens to me anyway, but i've noticed that sometimes when reading a thread, I get the feeling there's a missing image. It happened to me again today and just to se what would happen, I pressed the quote button. Sure enough in the quoted text was an image URL. I have no idea why sometimes these images don't load, but the real point is, there is no missing graphic icon on the page to let you you know.
I hope I'm making sense.