Green pixels in picture (1 Viewer)

[seco]

I have a really weird problem with RC2 SVN 16049. When I'm watching video (1080p mkv) or TV, in the center of the picture two green pixels are blinking. Actually those "pixels" are two pixels high, one pixel wide.

They're locate in the middle horizontally, and vertically about 20 centimeters of each other. I have 42" LCD TV and no, those are not dead pixels because I haven't got this problem before in RC1 versions.

If I play videos with Mediaplayer in fullscreen on my 42" LCD, everything is fine. If I use Mediaportal on my 20" TFT, same green pixels are blinking there too. I've tried dozens of codecs and settings for MP, but nothing helps.

I'll post more info as soon as I can.

TV-Server Version:
MediaPortal Version:
MediaPortal Skin:
Windows Version:
CPU Type:
HDD:
Memory:
Motherboard:
Motherboard Chipset:
Motherboard Bios:
Video Card:
Video Card Driver:
Sound Card:
Sound Card AC3:
Sound Card Driver:
1. TV Card:
1. TV Card Type:
1. TV Card Driver:
2. TV Card:
2. TV Card Type:
2. TV Card Driver:
3. TV Card:
3. TV Card Type:
3. TV Card Driver:
4. TV Card:
4. TV Card Type:
4. TV Card Driver:
MPEG2 Video Codec:
MPEG2 Audio Codec:
Satelite/CableTV Provider:
HTPC Case:
Cooling:
Power Supply:
Remote:
TV:
TV - HTPC Connection: