Error when running 2d pie chart

Hi,
I added a 2d pie chart to my project with the following sql in the Daily_Reivews_completed_variables.php:
$gsqlHead="SELECT tenusers.UserName, Count(pr_main.CompleteCheck) as `TotalComplete` ";

$gsqlFrom="FROM pr_main INNER JOIN tenusers ON tenusers.ID = pr_main.GivenTo ";

$gsqlWhere="";

$gsqlTail="group by tenusers.UserName ";
The chart looks great but i get a nagging little error at the bottom of my IE 6.0.29 browser:
Line: 56

Char: 3

Error: Syntax Error

Code: 0

Url: ....chart.php
Line 56 of this file reads as so:
$value1=postvalue("value".$gfield);
I have downloaded the latest version of phprunner with the maintenance relase. Any help with this problem would be appreciated.