Here's some
files if you wanna look Rick. There's 5 files totaling about 65meg in that zip.
I'm wondering if the bias point has shifted in the camera. I might need to redo the cal files as Karl suggests. The master bias file shows a low end of 2155, the darks show 782 while the lights show a bottom end of 1750. Sounds a bit odd. Definitely have to wait till tonight for a look, it's really bloody hot here today.