No Sun

I have setup SkyX and it is working nicely.
I can see the moon come up at night but I can't seem to see the Sun during the day.

Is the sun visibility disabled by default.

Any help would be great

It's difficult to tell without any more information, it must be something in your settings (if it's not some unknown skyX bug). Just check with the Demo (in which the sun is visible) and see which settings differ from your program.