Always a small size for images

Hello!! Everyone! Last days I found a problem with images and I would like to know if someone is in the same situation and can help me!! Thankss!!

The problem is that I get a small image view instead of original size since I upgraded my WordPress versión to 3.3.1!
All my images from Picasa, Flickr, etc are showed in the same small size :S ~500px.

Here you can see what I mean. Just click in a image and you will see the image but not in the original size:
https://almedinilla3d.ihman.com/category/progresos/

I tried using these plugin:
Photonic Gallery for Flickr, Picasa, SmugMug and 500px
Shashin
MudSlideShow
…
But with all of them I’m getting the same.

Any ideas will be appreciated!!