When i go into
Console > System Utilities > View Cacti Log File
i get the following
Warning: touch() [function.touch]: Unable to create file ./log/rrd.log because Permission denied in /usr/share/cacti/site/lib/functions.php on line 526
i'm running the latest version of cacti on a debian box.
oopps classic case of PEBCAK ... needed to set permissions to 777 on the folder