I've done comparative renders with P6 and P7, same image, same size [9" x 6"] at 300 dpi

Size of image in P6 =  40Meg  As it should be!
**Size of image in P7 = About 1Meg ** Totally wrong!!

Poser 7 doesn't save out at more than 75dpi, it's a known bug so I don't know how you guys are doing 300 dpi images.
That's why I don't use it yet, I do images for book covers and the publisher wants 300 dpi, if I do it in P7 they don't get it and they get mad at me!

maybe I'm missing something but I believe from other posts that this is a known bug but if you guys have some pointers I'd be glad to hear them!! 

Injustice will be avenged.
Cofiwch Dryweryn.