Has anyone taken an RN refresher course?

If so... did it help at all in getting a job?
Did you have prior nursing experience before taking a hiatus from nursing?
Cause I have never been employed as a nurse... and I've been out of school for 4 years now. I'm considering taking a refresher course... and would like to know about other's experiences. I have an RN license in Texas.

Thanks.
shameless bump