When using gt5 in various directories on my system (including my home directory) I get blank results.
If I limit the max-depth enough, I get results. For example, in my home directory 'gt5 --max-depth 2' produces a listing, while 'gt5 --max-depth 3' produces a blank page.
I've noticed that the temporary html file that gets created in tmp (such as '/tmp/gt5.9035.kJVM08Y9/gt5.html' is a zero-byte file.
I can successfully do a du in the same directory (which is what I thought gt5 was using), so I'm not sure what to check?