Sorry… what do you mean? Are you seeing thumbnails but no popup when you click on them? Have you checked the popup image enlargements options in the forum admin > Options > Content settings panel?

Hello,

Yes, The thumbnails no popup when i click on them. I have checked the popup image enlargements options in the forum admin > Options > Content settings panel. 

are the images bigger than the thumbnail size you set?

are you running latest version of SP? 5.1.1?

a link to example would help too…

Mr Papa said
are the images bigger than the thumbnail size you set?

are you running latest version of SP? 5.1.1?

a link to example would help too…

This is example: http://www.dominandoforex.com/miembros/forum/viviendo-el-proceso/preguntas-posible-formacion-tendencia

Well many things do not work as they should because your site is throwing script errors. Please see this codex article: http://codex.simple-press.com/codex/faq/troubleshooting/what-is-this-jquery-conflict/

This is the root cause of the problem and I believe it is your Wp theme doing this although I can’t be sure. If you can find where it is loading the jQuery script in the code we can usually correct this fairly easily.