Here, here to the workaround. I've have only swapped cards between units when one fails. My account has 3 active receivers in the house. I'm just running a single 18" dish with a 2x4 multiplexer. I have 2 DTC-100's and 3 RCA UTVs along with 5 RCA tuners of various flavors (16 & 32 bit). Half bought new, the remainder auction site finds as backups. Regardless they are all owned. One of my upstairs runs requires an RF coax hook up that seems to chew through standard boxes every few years.