Greddy Boost Controller Problem

[sbird1]

My Greddy Profec B Spec 2 boost controller is acting up and I don't know what to do about it. It's just displaying numbers from 0-12 when I'm driving. I can still change between lo and hi boost settings but I am also having some other problems that prevent me from knowing if the hi and lo settings are actually changing. Anyway, why is it displaying just these low, weird numbers and not giving me a boost reading? How can I change it back? What do these numbers mean? It usually reads between 0 and 2 but a few days ago, it got up to 12. Don't know why. I've gone through the manual 2 or 3 times and I can't figure anything out. I don't know what I did to get it to function this way. Any advise or anything is appreciated. Thanks.