Regarding the lack of clarity in P7 (Ben_Dover's comment)... have you checked your texture filtering settings in the material room? Rather than one single setting in the render settings (which was turned off by default on P6), each texture map used by P7 can be individually selected for texture filtering; it's now a choice on the image map node settings. Annoyingly for some, it's default position is now 'on'... and this can lead to blurry, ill-defined images and loss of clarity in the details.

jonthecelt