Skystar2 configuration in Media Portal

[ilchimico68]

TV-Server Version:
MediaPortal Version: 0.2.3.0
MediaPortal Skin: blue two
Windows Version: win xp
CPU Type: Intel P4 775 pin 3 Gz
HDD: 130 Gyga Matrox IDE
Memory: 2 Gyga
Motherboard: Micro ATX 775VM800 Asrock
Motherboard Chipset:
Motherboard Bios: 1.50
Video Card: on board
Video Card Driver:
Sound Card: on Board
Sound Card AC3:
Sound Card Driver:
1. TV Card: Skystar 2
1. TV Card Type:
1. TV Card Driver: 4.4.1
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: MPV Decoder Filter
MPEG2 Audio Codec: MPA Decoder Filter
Satelite/CableTV Provider:
HTPC Case:
Cooling:
Power Supply:
Remote:
TV:
TV - HTPC Connection:

I have tried the skystar2 with mediaportal "myTV" but the video flashing more, audio is ok. I have tried to change the codec but is the some. With other pogram like Progdvb or dvb dream the skystar2 is ok.
Someone can you help me?
Thank you
ilchimico68