[V8] Trans question

[NicolCS at aol.com]

I just had the heretofore perfect transmission serviced and now there's a 
problem with stalling.  Sometimes when I put the car in D or R after a cold start 
and begin to roll, the engine dies - as if overloaded.  Today it quit just as 
I started-off after stopping for a traffic light. I read that low ATF can 
cause stalling in a TSB so I checked the ATF level after a 15 mile warm-up and if 
anything, it was on the high side.  (Dipstick indicated FULL, my TSB on that 
subject says it should read in the middle of the range.)

Does anyone know what's going on?  Are these cars sensitive to different 
brands of Dexron ATF?  Yikes! Never fix a working system!

Thanks in advance, Craig
90 V8Q 96K, Cayenne mica