Slower channel changing with hardware acceleration activated (1 Viewer)

[melstig]

Area: Media Portal Program
MediaPortal Version: 0.2.2.0-SVN-17.02.2007- 8:42:38,19-Build 12995

(2007-02-17)
MediaPortal Skin: BlueTwo wide
Windows Version: Windows XP (SP2)
.NET CLR Version: 2.0.50727
DirectX Version: 4.09.00.0904 (9.0c)
Audio Codec: NVIDIA Audio Decoder
Video Codec: NVIDIA Video Decoder
CPU Type: AMD Athlon 64 X2 Dual Core 3800+
Memory: 1 GB
Motherboard: MS-7025
TV Card Model: Hauppauge Nova-T + Floppy DTV-T
TV Card Type: DVB-T
TV Card Driver: -
Video Card Model: Nvidia Geforce 7600 GS (256 MB)
Video Card Driver: 93.71
Video Card Resolution: 1360x768
Video Render Type: -
Audio Card Model: M-Audio Revolution
Audio Card Driver: -
Synopsis::

Bought a new 7600GS-card to get DirectX HW-support. The problem is that the channel changing is much slower with Hardware Acceleration activated than without.

There are many lines in the log as follows:
2007-02-19 18:10:52.640625 [Info.][6]: planescene: PresentImage()
2007-02-19 18:10:52.640625 [Info.][6]: PlaneScene: PresentImage() dispose surfaces
2007-02-19 18:10:52.640625 [Info.][6]: planescene: PresentImage()
2007-02-19 18:10:52.640625 [Info.][6]: PlaneScene: PresentImage() dispose surfaces
....

Does anyone have any ideas what this could meen? See attached logs.