$wpdb->update problem

I have the following code:

echo “$this->zipcode $key Calling Update”;
$wpdb>show_errors();
$wpdb->update(‘ncrj_donors’, array(‘zipcode=>$this->zipcode’), array(‘donorkey=>$key’)) or die(“Update Failed”);
echo “Update called”;

When it’s executed this is what I get on the screen:

02119-1582 Chatelle*******Robert****02119 Calling Update

The second echo statement is never executed. So the code doesn’t return from $wpdb->update

There is nothing at all in the php error file.

I’m baffled.