sk8terboy4
If this is what I think you are asking then I have to say that this is the way that FPSC works with the lighting system in general.
Maybe its because you are in an enclosed room?
Try 'removing all the ceiling\roof' segments from your test room. This will open up your room to the outside world and allow light to come into your room.
When using light markers in 'enclosed' rooms you can up the general lighting (ambience) using the < > keys on your keyboard which has already been mentioned before.
I'm not sure though what functionality FPSC 'Free' version has.
I hope this has helped.
http://i.imgur.com/a07bR.png