Beech 1900 VC Panel lights?

Hi

I'm using the B1900C in FSX/DX-10, where it works really well apart from a few glitches.

Most importantly, turning on the panel lights at night (with L key, can't find a switch) has only a slight effect with a few instruments getting slightly lighter.

I've seen pictures of a lit VC panel, probably in FS9.

I will try it in DX-9 when I get chance, but in the hope that it's a known problem - any suggestions?

Is there a panel reference doc anywhere?

Any good B1900 resources?

Thanks

Keith