image upload doesn´t work

Hello,

I¨m about to finish the web and everything worked perfectly last days but since two days ago I´ve found that the image uploader doesn´t work. Images can be loaded since the media editor if I use the brownse uploader but not the pop-up one. When I try to do it in a post, the uploader doesn´t show anything and, in consecuence, It doesn´t allow to insert or upload any item.

I´ve tried many solutions I´ve read in the internet: reinstalling wordpress 3.6.1., reinstalling an old version, giving 777 permissions, including line codes in .htaccess, deactiving all the plugins, updating the brownsers, testing twenty eleven theme…nothing worked for me.

I need tons of help!! My portfolio doesn´t work 🙂

Thanks in advance.