I just upgraded from 002 to a 003 rack , and Im kinda new with it, I was trying to record drums with it the other day and I was trying to use the 8 inputs but input 3 and 4 are not working at all, the guy i bought it from says there is a trick on the 003 that i gotta do to make them work, Im confused, have anyone experienced anything like this, is this a real issue of the 003s or maybe the unit got problems, cause I know the 002 was pretty easy,just plug select your input and go,
