I downloaded the "default" theme made some changes and uploaded to the themes directory as the name "new_default". I changed to this theme in my preferences and when I went to view the site, nothing shows up.

I changed the permissions on the folder thinking that might be it, but still nothing.

I then removed the directory and cleared everything out of the templates_c directory. Nothing.

I tried to change the theme config option back to "default" directly in the db. Nothing.

Anybody help?

r u use Ctrl+F5 key?
and change theme in db too?

edit:
then u can turn on php-debug in xoops_config table in db