Can't select image on K2 Tab

Hi, I'm Frank from Barcelona.
I'm a teacher and I'm building our school website using the apppro template cause it has an excellent design.

I started uploading content using K2 and I also bought Simple Gallery Pro.
The problem I have is that I cannot select or upload an image on the K2 Image Tab. I could do it, an I did it in some articles but now, when I click on Save (or Save and New) the next screen is blank with no error message, nothing and the image is not set on the article.
I've uninstalled Simple Gallery and tried it with Firefox, Chrome and IE but it doesn't work.

Any idea of what is happening?

Thanks a lot

Frank

Hi

What You can see in joomla panel access was not changed in our templates, so is has to be a general joomla issue or server issue. Please reinstall joomla and if this will not help please tell me Your serer specifications.

I have a problem like Frank

Yeah! I just solve it .

My way just set the permission for "media/k2/items/cache"

it work for me now I can see the image.

Hi

Yes but with such behaviour as described in first post ? I think that folder permissions will work only for upload, but should not affect selecting images.