Hi Mark

I do precisely as you describe. Right-click the mouse to increase the altitude and set the ARM button, which illuminates, and I get the usual alarm when reaching the selected CL altitude. But when I try to go the opposite way to decrease the altitude, when about to descend, nothing in the dial window moves as I keep clicking away, then all of a sudden it decreases from say 35000ft to say 7400ft in one fell swoop.

Additionally, I also do use the V/S button on the MCP to set the ascent/descent rate as you describe.

Off-topic, Mark, just tried a BA livery on what I had hoped to be a long flight from KSFO to EGCC, but whereas on the previous livery, the LTU, despite making at least a dozen flights so far, I had no problems getting the undercarriage up after take-off, despite trying twice, that U/c stayed stuck down.

Maybe a re-install?