Thanks yemge and Smartys. I can't find the error file, have sent a message to the web host to get location.
There's nothing remarkable in the config file (I've x'd out the password and cookie seed):
================== start of config.php ==============
<?php
$db_type = 'sqlite';
$db_host = 'localhost';
$db_name = 'punbbforum';
$db_username = 'dufferinpark';
$db_password = 'xxx';
$db_prefix = 'general';
$p_connect = false;
$cookie_name = 'punbb_cookie';
$cookie_domain = '';
$cookie_path = '/';
$cookie_secure = 0;
$cookie_seed = 'xxx';
define('PUN', 1);
================= end of config.php ================
the o_base_url (found through text edit of sqlite database - is there a tool for this?) is http://dufferinpark.ca/forum which is correct
I've deleted cache files (and a bunch of files in /forum directory called core.nnnn ?)
I'll see what the error file says when I find it.
- Henrik