Pictures to categories have ceased to be displayed

[Merlok]

Greetings to all! I have such problem, on my site it is a lot of photos, those photos which I add to separate items, I did not have problem, but when I start to add photos to categories, I had a problem that these photos aren't displayed, truly, just the new loaded photos for categories aren't displayed. Old, are perfectly displayed, and they are visible on a site. When I have tried to add earlier loaded photo to a new category it was displayed, when I have thrown the same photo, but have changed its name, it not became visible to a photo on a site. Earlier I thought that new photos for categories aren't displayed because of the different sizes, but after my experiment, I was convinced that it not so. Probably somebody had a similar problem, or somebody knows the such for what reason occurs. I will be very grateful for your councils.
P.S. Photos for categories are in a folder stories. I want to add that at me in this folder it is a lot of photos for separate items, and they aren't separated on folders and all lie in one heap.

[xmanhattan]

Hello Merlok,

Do you have a link for us to see what is happening?