Imported 2D Cockpit issue

Thanks to Amedee Vermeire I have imported the PSS A320 this flys great and with good FPS. Some reported problems with auto pilot holding on approach I rarely use this (needed lately with Heathrow but anotehr problem cropped up). The problem I encoutered is that in the PSS A320 VC mode most of the switches do not work so I have to go to 2D view. Lately I was trying Heathrow and with the Fog I had a black cockpit this seems to happen only with low visibility, after take off everything returns to normal. According to other posts this was also an issue with FS9 and was corrected using FSUIPC, I wish to know whether there are any fixes for this for FSX.Tony