Bravo throttle power dropping quickly at min lever detente

Its as if throttle/power too sensitive just above minimum detente for lever.
The power drops to about 30% as i move lever back - and then it will suddenly drop to 0% but only when lever is right down at minimum power detente.Applies to all aircraft.
Using throttle 1 and 2 axes.
Have to use keyboard F2 and F3 to adjust power gradually up or down.
Anyone any idea how to correct it? I am usung default sensitivity settings.

Sorted.I needed to reset the Windows Game controller to default. The bravo throttles work fine now,