Blank page at creating new templates

Hi.
I've just installed XOT 3,1 over Debian GNU/Linux.
When I try to create a new template, a pop-up appears, but there is nothing in it.

Any suggestions?

Thanks a lot

Any messages in the php error log or on the browser console?

Hi.

The apache log showed an error related to the "USER-FILES" directory (it said "File does not exist). I guessed it was a permissions issue. I was right. I did a chmod 777 to the USER-FILES directory.

Thanks