I'll get into my truck in the morning and start it. Normally, I see the screen lighten a bit, all the buttons light up, then the one-line Pioneer message and then the boot process starts.

Lately (and it is getting more frequent), I start the truck, the buttons light up, but the screen stays totally dark. No display at all. The radio comes on after a bit and the AV controls work, but no Map controls, a blank screen. The only way I have found to fix it is to stop the engine and restart it.

For the rest of the day, the system restarts fine. To go from Z1 to Z2, I replaced the hard drive (eBay) - but that has worked fine for many months.

Possible - Effected by tempature (cold at night - sometimes down to freezing).

Secondary question: Is there a CTRL-ALT-DELETE on the Z2 or is the only way to reboot to recycle the power?

Do this:

http://www.pioneerelectronics.com/PUSA/ ... e+Download

Will do - and thanks!

Applied the upgrade and the issue remains.

Note that the unit was a Z1 and was upgraded to a Z2 using one MCK13's Z2 hard drives. I think I am going to pop my old hard drive back in and see if this corrects the issue.