I'm not sure which category is correct for this. Anyway......
I had been using "DaVinci's Nightmare." Almost everytime I rebooted, the computer would get stuck on a black screen. I push the reset button and then it goes to the screen with the startup options. I choose "Start Windows Normally" and sometimes it would be ok and other times it would go to the black screen again.
I disabled Bootskin and in the 10 or so times I've rebooted since, there's been no problem.