Thanks for your response rd2rk
Yes... I accept this. The difficulty I have is that the snapshots are not functioning correctly e.g. Let's say I have a preset with three snapshots: Snapshot (1) just an amp and cab activated. Snapshot (2) amp and cab plus distortion block activated. Snapshot (3) adds a reverb block. Now... let's say I begin with snapshot (1) - all is fine, then I hit snapshot (3) - all is fine (I accept the 'E' is now visible). Then, let's say I go back to snapshot (1) - At this point, all three blocks i.e. amp and cab, distortion, and reverb are still active whereas only the amp and cab block should be active. Yet any parameters, e.g. amp volume, do actually change.
It's driving me crazy - I have about 30 presets which are behaving this way. I would appreciate any further thoughts - And thanks again