[FSXA] B744Specific Taxilight qustion

While installing A2A's Shockwave lights in FS9 and FSX, I tumbled over the weird problem that I've had to "develop" an additional gauge to be integrated into the Shockwave.cab in oder to swich off Taxilights being installed in retractable gears and being switched separately from the landing lights (this gauge exists). However, as far as I can say, the extra-gauge works superb, both in FS9 (even for some PMDG products) and FSX, - with one exception: the PMDG 747-400 for FSX. The light obviously is addressed correctly, but the panel switch remains unaffected, causing the Shockwave light itself to toggle on and off even if the gears are retracted. That doesn't look quite real... Please dear PMDG folks, is there any different event code used for the Taxi Light Switch in the panel? The same question I could extend to the RWY TURNOFF lights (in this case for both, the event for the lights and the switches). If someone is interested, the gauge looks like this:

<Gauge Name="SW Lights" Version="1.0">	<Element>		<Select>			<Value>			(A:LIGHT TAXI, bool) 1 ==			if{				(A:GEAR HANDLE POSITION, bool) 0 ==				if{						(>K:TOGGLE_TAXI_LIGHTS)				}			}				</Value>		</Select>	</Element>	<Update Frequency="1"/></Gauge>

As I'm no programmer at all, it might include a bug itself. However it works - in most cases.Any hint is appreciated, even if I'm talking about adding bells & whistles to a superb product I also could live with as it is.Thanks,Axel (who wishes a happy New Year to everybody)