I installed the Beta7 developer upgrade and software beforehand, and everything works fine (haven't tried it in a car yet though). I downloaded the newest pre-built kernel, v151.hijack.v200b8.mk2.zImage, and used LogoEdit.exe to send it successfully to the player. Now the player stays in standby mode no matter what I do, through multiple power cycles. Only reupgrading it using the SonicBlue software brings it back to life. I'm missing something here...what is it?