Resolve output render issues?

Hi
I'm outputting my first grade with Resolve 9. Source format is 1080p 25 MXF DNXHD 185 8 bit. I'm outputting Quicktime DNXHD 185 8 bit 1080p 25 as I need to import into After Effects as AE wont import MXF.

The output has artifacts where movement is concerned. It also looks as if its interlaced even though it isn't - a bit jagged. the source files are 100% fine. Any ideas what factors in the delivery page settings or prefs may be causing this?

This sounds like it is very frustrating.
I have a DNX185p Project from Avid Symphony and the media looks good on my client monitor.
I have not tried to output yet though and render.

I hope there is someone who can help.
I presume the footage looks good in Resolve.
What are your system spec's. This might help.

Radman.