I have been trying out Daz 4.7. 

If I just load a figure , say Genesis 2, with the as installed settings and one of the lighting presets, the render to screen produces a background of grey and white  squares, which I normally associate with a transparency in Photoshop. However when  I save this render and load it into Photoshop the background is black. It would be really nice to  retain a transparent background,  but failing this a white or pastel colour would be acceptable. The colour  of the background in the view port does not appear to influence on the outcome.  Can anybody help with this problem?