So this is the problem:

When you save a file, Poser uses the location of the saved file to store the cache in so it can render the image.

When you're working with an unsaved file, Poser doesn't have a directory to store the cache in.

It defaults to Program Files\Poser - which is of course read only (I could see this in the queue manager).

The first time I installed Poser it created a directory under documents\poser\rendercache (something similar). But at some point it lost the connection to that folder and would no longer use it. When I deleted that folder (I wiped everything Poser) and reinstalled Poser, it didn't create the directory again - and so didn't have a valid path for the render cache.

This problem persists but I now have 2 work-arounds:

1. I can send it to the render queue where I can specify the output path

2. I can first save the file (oddly enough when I'm creating something I work with unsaved scenes 90% of the time because you're saving the props or materials - not the scene)

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