I'm currently having an issue rendering large scale images in Anime Studio Pro. Before you're wondering why I would want to render an image at such a large scale, let me explain. Prior to obtaining a copy of Illustrator, I used Anime Studio for two things; animation and vector based imaging. I would render large scale images of artwork I made in Anime Studio Pro (5) and import them into photoshop for large scale printing. I recently purchased a new computer (Apple) 'cause the monitor on my old computer went dead on me and is under repair (PC). My girlfriend also recently bought me a copy of Anime Studio Pro 7, so I'm not exactly sure what the issue is, whether it's the current version or my new OS. I cannot try rendering the image in ASP5 in Mac OS 'cause I only had that version installed on my PC by a friend, so I only have access to ASP7 (which I would rather use anyway). I didn't have this problem before under Windows running ASP5. Here's what's happening...
When I render an image at 8000x6400, I can see the image begin to render out just fine, up until completion. As it comes to an end, I have the original image underneath what appears to be CMYK overlays of the original image fragmented over the actual rendering. Here's an example:

The only actual color you can see here is the thin strip down the middle of the image. Everything else is due to a sort of "burn" effect from overlays non-existent throughout the project.
Now, as I decrease the resolution, the overlays begin to space away from the actual rendering:

Now you can see more of the actual image, but the overlays are still in the frame. What was once a small strip is now a larger gap in the center of the frame. This was set at 6000 x 4800.
Here's what the image should look like:

This was set at 3000 x 2400 (still set pretty high, but not as high as I would like it to be).
What is going on exactly? The only thing I changed between each rendering were the dimensions. The overlays you see in the first two images do not exist. As I said before I can see the image render completely fine at higher dimensions, but for some reason, as it nears completion, the overlays show up and render into the final product.
I am stumped. I have no clue how to solve the issue, where to look on the forum or if this has ever been addressed. Let me remind you that I did not have this issue running Anime Studio Pro 5 under Windows XP; the problem has been present running Anime Studio Pro 7 under Mac OS (brand new iMac, running 10.6.6).
Please let me know if there is some way I can solve the issue or if it's something I'll be forced to work around. I'd rather not have to recreate the images in illustrator, I just love drawing in Anime Studio.
Any help is appreciated. Thanks ahead of time.