BBC HD/DiSEq setup?

[sploo]

Hi,

I've got a Hauppauge WinTV NOVA-HD-S2, which came with Cyberlink's PowerCinema.

I also have a fixed dish, with three LNBs on an arm, one for each of the following three satellites:

Hot Bird 6/7A/8 at 13.0E
Astra 1F/1G/1H/1KR/1L at 19.2E
Eurobird 1 & Astra 2A/2B/2C/2D at 28.2E

The three LNBs are connected to a DiSEq switch, with the output going to the NOVA card.

Once told that there are three satellites, PowerCinema happily finds channels, including BBC HD (on 28.2E, at 10847MHz).

However, ALT-DVB will find numerous channels on all three satellites, but fails to get a signal for a large number (including 10847MHz, and in fact all the other UK FreeSat channels, as far as I can see).

I'm struggling with two things:

1) How to setup the DiSEq in ALT-DVB
2) Why ALT-DVB can't find channels that PowerCinema can

In the Add/Edit Satellite settings, you can select a 'simple' DiSEq (but that only gives you the option of LNB1/LNB2). Selecting 'committed' gives more LNBs, but in either case, ALT-DVB reports errors (I think it's complaining that the driver doesn't understand the commands).

However, regardless of the DiSEq setting (simple/committed/none) it will pick up channels, just not BBC HD etc.

Can anyone offer any thoughts/advice?

Many thanks!