I've just bought a used Roland JX-8P. It's alright, but I'm just puzzled at one little thing. I've seen about a hundred pictures of JX-8P before I bought it, and everywhere it had instrument names printed on the selection buttons (e.g. "Piano 1", "Hi Strings"). I've even seen a few JX-8Ps live which had those names written. But my synth has plain, clear white buttons! No instrument names written on them. Maybe it's an older version of JX-8P or something? Please let me know.