Twinhan card not recognised (1 Viewer)

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TV-Server Version:
MediaPortal Version: 0.2.3.0
MediaPortal Skin: Default
Windows Version: XP SP2
CPU Type: P4 HT
HDD:
Memory:
Motherboard:
Video Card: nVidia GeForce FX 5500
Video Card Driver:
Sound Card:
Sound Card AC3:
Sound Card Driver:
1. TV Card: Twinhan DTV Terrestrial
1. TV Card Type: DVB
1. TV Card Driver: BDA
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:
MPEG2 Audio Codec:
h.264 Video Codec:
Satelite/CableTV Provider:
HTPC Case:
Cooling:
Power Supply:
Remote:
TV:
TV - HTPC Connection:


I have updated my OS and installed all the requirements, Media Portal runs fine, BUT in the configuration dialogue I go to the Television, Capture Cards section and click 'Add'. Previously, I got two error messages saying that a card could not be found, now (after installing BDA drivers) I get one error message saying the card cannot be found, and the "Edit Properties of your TV Card" window appears. the card works with the software it was supplied with.

is there something I have missed?