if you have a card error, then it seems to be connected and flashed correctly. have you used the conductor this season? are your audio files converted to .ogg? what happens when you insert the card? says not connected? then pull the card and card error message stays on?if you do not have your files with these extensions, the conductor will not read the card while inserted into the conductor. really sounds like a file issue since you get card error message while the CF card is ejected. if you have these files as they are shown, then take a tooth pick and slowly slide over the socket pins while the card is inserted, if you have a loose pin(which card error message says other wise) then it will pop up once you run over the loose pin.
playlist.dat
password.dat
show.sho
schedule.sch
sequence.seq
audio.ogg