Not that I'm aware but I can have a go and get back to you - I don't use scenery ground shadows (I take it you mean shadows from buildings etc). You're also a DX10 user, right?As far as I know Shade is just a modified shader that can do much better shadows whereas the problem you describe (and I tend to get it on standard rather than payware airports) is just a bug with rendering orders that was never fixed because DX10 was just a 'preview'. Bear with me if I don't reply however - my other half is 2 days overdue with our first child so likely to be very busy very soon!

No I'm not a DX10 user, I just like ground scenery and airplane shadows but dislike the graphic flickering at addon airports.

Ah ok, probably not for me to try then.