Great, thanks for your help.
Just looking through your code, the same problem was in
The "view additional bandwidth" box never worked. But I didnt really care as it wasnt core functionality for me. Pasting the interfaces in, now means that works too.
I wonder if this is why the bandwidth graph / chart never worked also? Checking data.php the first line was interface =; But setting it to venet0 does not give me a graph. I'll let you know if I get it working.
Ok the graph now works too. In data.php there was another line with no value namely
$data['label'] = ;
Which I just set to any value, and we now have a blue line in the middle of the graph - never had that before. Sadly it isnt showing bandwidth usage, yet.