user warning : table doesn't exist query

Strange error, I cannot reproduce it. Have you had any pb. during installation of the module (that's where the tables are created)? Also, is it a fresh installation or an upgrade?

Thanks for the great module. You need to modify the following hook for curly brackets as well.
function priorities_cron() {
// Check for surveys due to be closed (status = 0 or status = 1).
$time = time();
$sql = 'SELECT survey_name FROM {priorities_surveys} WHERE (starttime + duration) < '. $time .' AND (status = 0 OR status = 1) AND duration != 0';
$result = db_query($sql);
$surveys = array();
while ($r = db_fetch_array($result)) {
$surveys[$r['survey_name']] = $r;
}
foreach ($surveys as $survey_name => $survey) {
db_query("UPDATE {priorities_surveys} SET status = 2 WHERE survey_name = '%s'", $survey['survey_name']);
}
}
?>

Automatically closed -- issue fixed for 2 weeks with no activity.