Possibly the white and black points are being clipped. If you give it a reprocess at some point make sure the histogram barely touches the black and white edges.
-Cam
Thanks Raymo. I will try to get some more colour boost next session.
Hi Cam, I will check for black clipping again in Gimp tomorrow night. The image was largely processed in Star Tools so clipping is less likely (the software shouldn't let the novice like me ruin the image) that's one reason why I bought it.
Maybe the tweaks I gave it in Gimp pushed it over the edge.
Cheers, Bruce.