Hi,not shure if this already mention. I monitored since I installed the FSX Accelearation Pack and switch to DX10 that the Beacon light not works. When I switch of the DX10 to DX9 it still works. This I monitored with PMDG 747x and all standard Aircrafts. I tested this with the virtual panel and with the 2D Panel no difference. Therfore I think this is a generell Problem with DX10. Tried this with the NVIDIA 163.69 and the Latest Beta Version 169.04, nothing happend.My Graphiccard is the 8800GTX card with VISTA 32 Ultimate Edition. Have somebody else this already monitored? Or any suggestion what I can do here?RainerEdit: when I go absolutly near (maximal zoom) to the aircrafs beacon lights I see only very very small red light blinking

before (what you are expecting) and after (what you have now) pictures would help.Thomas[a href=http://www.flyingscool.com] http://www.flyingscool.com/images/Signature.jpg [/a]I like using VC's :-)N15802 KASH '73 Piper Cherokee Challenger 180