One of my computers has a problem, I am about to do a BIOS update, but I am very careful. ASUS P8Z68-V GEN3 + i5 2500k I wanted to use my external DVD to boot Acronis Disk Management Suite to do some partitioning, and then restore an image. I did that a month ago, no problems. Now it won't boot from the external DVD, I checked and the other PC boots from it without problems. So I tapped DEL during POST and checked the boot order, and changed it. Still no go, it still boots Windows. I try again to enter setup, POST screen does not appear, display switches on and off (energy saving, but not very handy) and Windows loads. I tap DEL during what should be the POST screen, and it stops booting, reset or power off/on is needed to reboot. Now I unplugged the power cord and opened the case, removed the battery and waited ... I downloaded the latest BIOS with the other PC, the original is still on it, and I am about to update using EZ Flash 2. Provided I can enter setup, that was not easy before, I hope I can get into it now. Please advise me, any suggestions?