RE: frayed bow string... excuse the lingo
Bscofield,
You could have a couple of problems. First your arrow rest may not be centered correctly and secondly the cable guard may not be set right. My advice to you is to visit an archery proshop and get some help. It sounds like your bow needs some tuning. Since you appear to be fairly new to the sport, this is the best advice that I can offer at this time.