I have seen this mentioned in another thread but it was mainly about something else and no one was saying if they new what was causing it. I have at least figured out what is happening on my computer. It seems that any time it is less than full daylight in FS the needles in the Brake Pressure gauge disappear when the INSTR & PED PNL lights are on. I guess this is one for a future patch. I apologize if for starting a new thread if there is already one going on about this specific problem. This is in FS9. I haven't tested it in FSX.

What plane?

Aw man I hate it when people don't mention which plane or platform and here I am doing it. I am talking about the MD-11.

It has been noted in the wishlist for an upcoming patch... see the respective thread...Of course, I cannot say whether it will be addressed, as I am not on the development team :DAndrew