Hi everybody,After installing the SP1c I noticed that sounds of the switch, flaps lever, parking brakes, TCAS test, GPWS, gear, seat belts sign etc... didn't work anymore.I uninstalled the 737NGX, then re-installed it again with the SP1b and every sounds worked perfectly. So I tried to reinstall the SP1c but it's the same story. I just have the engine sounds working.Does anyone have an explanation to this problem?Thanks in advance.Vincent.

Edited March 5, 201214 yr by Vincent737

-try hitting QQ? (Q by default toggles FSX sound off/on)-Verify in CDU, PMDG Setup, Options, Sound that the correct device is selected and levels are set appropriately. This shouldn't be changed by the SP, but ya never know.

Hello,I tried with the "Q" toggles and I checked the PMDG sound options. All sounds are at 100%.I don't know why it doesn't work. All worked perfectly with the sp1b 3118.Some news:When I try to play a sound file in the 737NGX folder > Switches, I have a message which says that windows media player can't read this file (C00D11B1) but it can read every engine or APU sound files.

I find the problem, well in my case, but maybe it can also help someone else:There was a conflict between the DirectX version and Realtek audio driversVincent

Edited March 6, 201214 yr by Vincent737

hi Vincent could you please tell me how did you operate to solve this problem cause i have the same issue over here,thanks in advance.KARIM.

Hi Karim,I just reinstalled DirectX with this link: http://www.microsoft.com/download/en/details.aspx?id=35and I installed the latest codecs for realtek: http://www.realtek.comVincent.

hi VINCENT, i am gonna follow your instructions,thanks for your precious help,i ll keep you informed,Karim

HI VINCENTi must admit that it works fine thanks again,i had just to reinstall the direct x and i am on my way to algiers daag ehheehhee thanks.No need for the realtec codecs.KARIM

I'm glad to know that it works for you.Have a good flight.Vincent.

Hello, I have the same problem. I have installed new Realtek drivers but it did not help. I have Windows 7 64 bit, DirectX is 11. The previous version with SP1b worked fine.Antonin Pecinovsky