problem

in some aircraft's i cant see the pilots sun sheild {the black sun glases} the aircraft's ar mostly from FS2004 but still there are no effect and gauges problems so why cant i see the sun shield??note:i press ctrl+w {the key to make the pilot put the sheild over his eyes} and all i see is his hand going up and down as if he's taking the sheild down but there's no sheild!!!!please help :{ thank u very much!!!