Thanks again, Daniel for your expert advice. It is worrying that potential customers (like me) use the manuals to confirm functionality before buying!

Your confirmation has ruled-out the RM-AV2500 for me (unless someone can confirm that the RM-AV2500T does not also suffer from the same bug). Maybe I should consider a used RM-AV2100T, instead, although I like the idea of the directional hard-keys of the updated model.

Thanks again.