Does anyone know why when I'm flying the default Baron or Bell 206 at night with Acceleration loaded and "DX10 Preview" ticked, my nav lights dont show up ? In spot view I can see the red or green coloured reflection on the fuselage side, or wing tips but I cant see the actual lights. No strobes, no flashing anti-collision beacon on the tail. I can see landing lights from head-on when I put the Baron wheels down. Have no other add-on software loaded at the moment apart from the Eaglesoft Twin Comanche, Carenado Skylane (which just shows white under DX10)and Alphasim Hudson.I've updated the drivers (to 7.15.11.128 dated 11/05/2007)from the Sony Vaio site for the NVidia 8800 card in my Sony Vaio Vista notebook. When I untick the "DX10 Preview" box, everything shows up fine again. Daytime flights with DX10 selected are OK. Any ideas, please. I'm a bit in the dark, here.ThanksSteviejo

Hi,I've got the same problem and posted about this in the FSX forum some time ago. Never got any response. But I read some where that "DX10 Preview" is exactly what it's called, only a preview of what a FS could look like running in DX10 mode. I allways run FSX in DX9 mode to avoid problems with some add ons and the missing nav and strobe lights. I hope that it's a driver issue that'll be fixed soon, because I like the water reflections in DX10 mode.Ulf BCore2Duo X6800, 4GB RAM, BFG 8800GTXCreative SB X-Fi (Gamer mode)Vista 32, FSX Acc/SP2

Hi Ulf,Thanks for the response. Its helpful to know someone else has the same problem. I did do a quick search before posting but must have missed yours. I agree about the DX10 water reflections - thats my favourite aspect too - although the whole thing somehow seems that bit better with DX10. But I guess if I can only see the benefit during daytime then it doesnt matter if I have to use DX9 at night (I suppose). I understand about the "Preview" now - but that wasnt what I expected - and wasnt what I waited, saved up and spent a lot of money on my new Vaio for.(And thats after I bought a new Hewlett Packard before that to get rid of the "blurries" when FSX first came out). I guess I must learn to control my expectations ! Happy (simulated) landings Steviejo