TV Client not working (2 Viewers)

[McFly]

MediaPortal Version: 1.1.2
MediaPortal Skin: Streamed MP
Windows Version: Seven x64
CPU Type: Intel E8400
HDD: WD 640GB + WD 2TB
Memory: 4GB DDR2 1066Mhz
Motherboard: Gigabyte GAEP45-DS5
Video Card: Sapphire ATI HD5450
Video Card Driver: Ati Catalyst 10.10
Sound Card: motherboard embedded (realtek HD audio)
Sound Card AC3: optical out
Sound Card Driver: Realtek HD Audio R2.48
1. TV Card: Terratec Cinergy xxs USB
1. TV Card Type: DVB-T
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: SAF 5.02
MPEG2 Audio Codec: SAF 5.02
h.264 Video Codec: SAF 5.02 (ffdshow)
Satelite/CableTV Provider:
HTPC Case: Antec Fusion Remote Max
Power Supply: Enermax Modu82+ 525w
Remote: Logitech Harmony One (mapped as MCE remote in IMON)
TV: Sony LCD 55" 55NX810
TV - HTPC Connection: HDMI

Hi, I can't start the TV on my MP setup (singleseat). When I try to start "TV" on my MP client, it instantly returns to the Basic Home Screen.
I checked the TV Server configuration, and all seems ok, I can scan the channels of my DTT tuner and can launch the previews (but here I have a little issue, I can hear only audio, no video in the popup window that appears). I use SAF 5 configured with PowerDVD10 codec for the TV part (both Mpeg2 and h264).

I suspect the problem started after the SP1 upgrade of Win7, but I'm not sure. What can I do?
for your help.

 

[Paranoid Delusion]

<entry name="TV">no</entry>

TV plugin is disabled in MP config or even missing.

 

[McFly]

Thanks for the suggestion PD, I don't know how it could be disabled, now it works... more or less.
I'm able to launch the TV client and see the channels list, but when I try to watch a channel a popup appears ("Unable to start graph"). Now I have to play with codecs settings, I'll post a new log in case.

Thank you again.