With SkyStar 2 TVClient is stuttering, MP stand-alone or TVServer+VLC is ok (1 Viewer)

[xavier]

TV-Server Version: 14469
MediaPortal Version: SVN 14501
MediaPortal Skin: Blue Two
Windows Version: XP MCE SP2
CPU Type: P4 3,4 GHz HT
HDD: 2 x Maxtor 250 Sata
Memory: 2 x 512 MB DDR 400
Motherboard: P4P800-X (ASUSTeK Computer INC.)
Video Card: Nvidia Geforce 6600 (256 MB)
Video Card Driver: 8.1.9.8
Sound Card: SoundMax integrated
Sound Card Driver: 5.12.1.3665
1. TV Card: SkyStar 2 PCI
1. TV Card Type: DVB-S
1. TV Card Driver: WDM 4.4.1 beta
2. TV Card: PVR-150 MCE
2. TV Card Type: Analog
2. TV Card Driver: 2.0.30.23074
MPEG2 Video Codec: MPV
MPEG2 Audio Codec: MPA
Satelite/CableTV Provider: HotBird 13°E / SkyItalia
Power Supply: Standard ATX 500W
Remote: Microsoft MCE
TV: Philips 28" CRT
TV - HTPC Connection: S-Video

With the stand alone release of MediaPortal, MyTV module is ok.

Also TV-Server + VLC is ok.

When the TV-Client work with the SkyStar 2, the TV is stuttering.

Note: if I change the SkyStar 2 driver from WDM to BDA, so MP stand alone is stuttering.

Regards,
xavier.