TV Card

I've recently bought a new computer from PCSpecialist and it has a TV card built in. I think it is a Realtek RTL 2830. On Device Manage it comes up as DTV-DVB 3071 PCIe Capture Device with HID. The driver version is 1.0.4.6.

I've connected it to my aerial lead which I know works perfectly well as I tested it with a TV. I've tried it with 2 programs - DigitalTV and Blaze DTV which worked with my old USB TV dongle.

There are no yellow marks in Device Manager. I'm in the UK so it uses the DVB-T thingy yes? Both programs sense there is a TV card (DVB-T: DTV DVB PCIe BDA DVBT Tuner 0 and Tuner 1). I'm not sure why it detects 2 though. I've just rescanned and it's found nothing. I told it to scan United Kingdom.

I'm running XP SP3.

I'm not sure why it isn't working. Any help? Drive issue, card issue or computer issue?