I don't know if anyone else has had this problem, but I thought I
would post it just in case.
I was getting a variable undefined problem in tiki-g-
monitor_instances.php due to a call to the ADODB object's query
method which expected 'wherevars' to be defined.
I added the following to tiki-g-monitor_instances.php on line 119:
$wherevars = null;
This solved the problem and the monitor instances feature came up