Speedometer Chart Accuracy Problem (3.5)

Hi, When I publish a Speedometer graph the accuracy is off by a noticable amount. Example: Where the graph value is 9.2 the needle clearly points to 9.5. There is a large space between 9 and 9.5 so the users will definately notice. A mouseover displays the correct datapoint value.

Another example: Where the graph value is 8.3 the needle clearly points to about 8.6 or 8.7. This is a problem becasue there is a minor tick at 8.5 so the needle shouldn't be past the minor tick.

Any ideas if there is a setting I'm missing or just a problem with the speedometer chart functionality?

Anyone?