Hi Markoz, That explains alot, I obviously was not aware about a problem with Win8 and the minimum requirements mentioned. I have the same problem with the sound issue. I created a short cut on my keyboard for Aircraft Reload and it works just fine, I use a short cut for ALT/GEN key instead of the Battery Switch on FE panel, also Avionics Master key on my keyboard regarding the known Battery/Avionics issue. Other than that it is an awesome aircraft. I was thinking of purchasing another aircraft from CS but now, I am not to certain.