my picture also rocks a little, almost like a power surge.
By the end of the day it looked like my battery was either dying or the transducer was really screwing up bad. Everything was flickering. I've ran it dead before but have never seen this reaction. I charged it and took it to a local pond last night. I'm not so sure its the battery vs the transducer. I was marking all kinds of crap up shallow which is normally not the case.
Either way I have a new transducer on the way. Hopefully this one doesn't fail. After doing a little digging it seems like the vex's transducers are/were doing this also?
Has anyone found a way to keep it from happening?