coreavc settings

[fallenturtle]

TV-Server Version: none
MediaPortal Version: 0.2.2.0
MediaPortal Skin: foofaraw 1610 vs 0.2.2.0
Windows Version: XP Pro SP2
CPU Type: AMD Athlon64 3500+ 2.21
HDD: Maxtor 10gb
Memory: 1gb
Motherboard:
Motherboard Chipset:
Motherboard Bios:
Video Card: radeon 9800 pro
Video Card Driver: 8.36-070314a3-044981C-ATI
Sound Card: Turtle Beach Audio Advantage Roadie (USB)
Sound Card AC3: not active
Sound Card Driver: 5.12
1. TV Card: none
1. TV Card Type: none
1. TV Card Driver: none
2. TV Card: none
2. TV Card Type: none
2. TV Card Driver: none
3. TV Card: none
3. TV Card Type: none
3. TV Card Driver: none
4. TV Card: none
4. TV Card Type: none
4. TV Card Driver: none
MPEG2 Video Codec:
MPEG2 Audio Codec:
Satelite/CableTV Provider:
HTPC Case:
Cooling:
Power Supply:
Remote: ATI Remote Wonder
TV: Optoma HD70
TV - HTPC Connection: VGA

For some reason when I watch videos using the coreavc codec in media portal deblocking doesn't seem to be active, but when I watch the same file in media player classic with the coreavc codec, deblocking is on (I can see the difference) and I can actively turn it off and on from the coreavc settings panel.

But these settings don't ever seem to have any effect on x.264 via coreavc in media portal. I put media portal in window mode and ran graphedit and have confirmed that it is using the coreavc codec, but the picture looks worse then it does in MPC because of the blocking issues.

Any ideas?