The problems your having is the reason the MDS line was recalled and is no longer for sale in this country. I did some RD for Horizon and tried every card combo there was and could never get a fix that would work. Some have had good luck with them but most experienced the same thing your having. There are to many good engines on the market now so don't waste your time dinking with MDS. In my option they are nothing but a paper weight. I had to take back everyone that I sold here and I'm not the only store that did it. Dennis