EVR: no YV12 output, bad DVD colors (1 Viewer)

[McFly]

TV-Server Version: 1.0 RC3 (latest SVN)
MediaPortal Version: 1.0 RC3 (latest SVN)
MediaPortal Skin: Aeon wide 1.3
Windows Version: Vista x86 SP1
CPU Type: E8400
HDD: WD 640GB
Memory: OCZ 4GB ddr2
Motherboard: gigabyte EP45-DS5
Video Card: sapphire hd4670
Video Card Driver: latest catalyst
Sound Card: on mobo
Sound Card AC3:
Sound Card Driver:
1. TV Card: terratec cinergy xxs usb
1. TV Card Type: dvb-t
1. TV Card Driver:
MPEG2 Video Codec: nvidia
MPEG2 Audio Codec: nvidia
h.264 Video Codec:
Satelite/CableTV Provider:
HTPC Case: antec fusion remote max
Cooling:
Power Supply:
Remote: imon
TV: sony lcd 40"
TV - HTPC Connection: dvi to hdmi

Hi all, I'm playing around my new htpc. My major issue is about the color quality during DVD playback: with EVR I notice the reds are too strong and overall colors are not real.

I use (for the moment) this video chain: DVD > Nividia MPEG2 Video Decoder > ffdshow postprocessing (with avisynth) > Theatertek 2.6 with EVR (but is the same with ZoomPlayer) setup in MediaPortal as external player.
If I change from EVR to VMR9 the colors are better, but the image is so poor, the edges are not so smooth.

How can I setup EVR with the HD4670 to get good colors?

P.S. another minor issue I have is with imon LCD display in my antec remote max case. I can't use it with MP. I enabled the external display plugin (mini display now included in the MP svn) but when I turn on MP the imon display turns off. What is the setup in imon manager and in the plugin configuration? (in the plugin config. I use the imon vfd/lcd driver with USB connection)

 

[JoePlumber]

ffdshow has an overlay control you can use but only in XP. I think you have to adjust your colours from the display properties for your graphics card.