Video acceleration doesn't work anymore

[chemelli]

TV-Server Version: 3.0 SVN rev 16559
MediaPortal Version: 0.2.3.0 RC3 + SVN rev 16558
MediaPortal Skin: BlueTwo wide
Windows Version: Vista Home Premium
CPU Type: Intel Core2Duo E6550
HDD: 2 x Seagate 320Gb
Memory: 2 x 1 Gb Corsair DDR2
Motherboard: Asus P5K
Motherboard Chipset: Intel P35
Motherboard Bios: AMI v0603
Video Card: Sapphire ATI X1950 PRO 512Mb
Video Card Driver: Catalyst 7.10
Sound Card: Realtek ALC883 (onboard)
Sound Card AC3: no AC3
Sound Card Driver: v6.0.1.5485
1. TV Card: Hauppauge HVR-4000
1. TV Card Type: analog + DVB-T + DVB-S/S2
1. TV Card Driver: WinTV CD 4.0
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: fddshow Video (from Vista Codec 4.51)
MPEG2 Audio Codec: fddshow Audio (from Vista Codec 4.51)
Satelite/CableTV Provider: Hotbird 13°E
HTPC Case: Silverstone LC20M with SoundGraph VFD
Cooling: CF800 ZeroTherm APACK + 2 x 80m Xilence chassis fan + 2 x Aeolus hdd cooler
Power Supply: Nesteq na4501 - 450W
Remote: iMON PAD
TV: Samsung LE32R53BD
TV - HTPC Connection: DVI-to-HDMI + analog audio


When I use the x2 or more accelleration in a video, I don't see it anymore so it's difficult to understand when to go back to x1.

Simone