The official reply from E-Frontier: ------------------------------------------------------------ The blue-channel issue actually closely resembles a bug that we found (and fixed) in SR1- I'll pass it along to our QA staff so we can see what might still be going on, but I haven't been able to reproduce this problem on my Core Solo Mac mini (admittedly it's an Intel Mac running 10.4.8); I'll check it on my Panther G4 at home (I've been saving my renders as PNGs, or I'd be able to tell you right away if it were happening) and of course we'll set up a G5 to check it out. QuickTime renders also work fine on the Mini (again, I'll check on the G4 and pass it along to QA); although Poser 4 renders currently can't include a background image, rendering over black does now produce a proper alpha channel if you save out a PNG, even if you're using the P4 engine. Here are my suggestions for workarounds to the problems you report- 1. Instead of Photoshop files, save out rendered images as TIFFs- the data that gets saved is the same; if you need alpha channels, save out PNGs; 2. For movie files, image sequences work very well, preserving image quality as well as alpha channel data if you choose PNG for the image file format; 3. Unless you really need to use the Poser 4 engine, we recommend Firefly- especially with the current support for multiple processors and the general speed boost that we gave to the new Firefly, there's no major benefit to the P4 engine. --------------------------------------------------------------------- Anyone who is having this problem and stumbled on this thread via Search may find this info helpful. Their work-arounds were my work-arounds but I would rather a feature that dates all the way back to Poser3 (?) still work in the improved model. It's not like I'm expecting RT Ray Tracing! ; )