Unfortunatelly, Cucumber, any object that uses more then 1 texture layer isn't affected by lights. Be it shadow map, bump map, blend map, cartoon shading, mirror etc. Don't know if it is indeed a bug or if it will ever be sorted out but it's been around since forever (its not new to 5.9).
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That is what I would like to see sorted out in U6.1. Multi texturing has evolved a lot in the last few patched and I hope that in the very near future we will be able to see multi textured objects afected by real time lights AND would also like to be able to use bump mapping and shadow mapping together with correct results. So plz, Lee and Mike, if u are reading this plz plz plz dedicate one whole patch update to finally sort out multi texturing and the DBO format.
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Thx
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And this cannot go without saying. You have done a superb job with this 6.0 update. DBP has never been better. Here's to u DBP Team
Take care
AtomR