Yup, same thing happens to me Tyson, on about 4 out of 10 G29s i send. Totally stumped and cant figure out what its related to or triggered by. Happens like this: it does 8 probes without a hitch, starts doing the last, touches once, goes back up, starts lowering slowly and as soon as probe triggers (or there about) the LCD goes blank, and the whole thing seems to freeze up. Any ideas? Other than that been loving the enhanced ABL and the fact the probe doesnt no longer scrapes the bed on retracts, thanks Roxy!!!!