Ive had some email contact with Nick and he found out what the problem was.

It had nothing to do with the way i configured my FusionConfiguration.xml.

The problem was that my regional settings where set on dutch. And here in the Netherlands we use a , instead of a . for a decimal symbol.

Ive changed this in the regional settings and now everything is working fine.

For those who have the same problem bellow is a screenshot of what you need to change in your regional settings:

Thanks Fusion Control Centre