From the terminal type:
sudo nvram -pThis command prints out your current arguments for the settings. If you want to see the old school style bootup type this:
sudo nvram boot-args="-v"Reboot to see the effects. To change back to the regular bootup screen type the following:
sudo nvram boot-args=""(notice that the quotes have nothing in them.)
[Editor's note: Other than testing the "-p" option, I have not tried this tip myself, so I can't verify whether it works or not ... but it makes sense based on the output of the "-p" switch.]

