Another Problem

I know had a problem before but this ones just a small one and I think I might just tackle all my problems at once.
Well, anyway, its just when I have my strobe lights on they are just gray squares flashing instead of the actual thingy (Hmm, very technical i know). I'm not sure if its the texture or the effect file or what. Should I just use the fsx disk and do repair (If it can be done)?
Thanks again.
Well, anyway, its just when I have my strobe lights on they are just gray squares flashing instead of the actual thingy (Hmm, very technical i know). I'm not sure if its the texture or the effect file or what. Should I just use the fsx disk and do repair (If it can be done)?
Thanks again.
