So, to summarise For Trevor John's benefit - there are broadly speaking three types of rhythm/style files...
1. Those that are built into the keyboard and are found in 14 of the 16 rhythm group buttons.
2. A limited number of changeable Custom styles found/loaded in the Custom style button area.
3. An amazingly large number of other style files which when downloaded to a floppy disk or SD Card will show up one at a time but not as a collection in the sixteenth button called Memory load when you load any one of them from a floppy disk or SD Card

I believe this last differs somewhat from the Yamaha approach where additional style files can be downloaded into the keyboard in quantity and then be selected from. No doubt this is currently confusing Tevor John as he expects to find these sorts of styles in quantity in Custom styles area in the KN7000.

One should add that updating the O/S does not change any of this in the slightest.

[This message has been edited by RMepstead (edited 02-13-2010).]