| You don't really want the prompt (grub>). You want to get to the boot script used by Grub. When the splash comes up, press any key (I favor the up-down arrow keys because they don't send a character). That will stop the countdown timer. THEN you press 'e' after selecting the correct "title" on the menu, using the up-down arrow keys. That should show you the three lines used to boot, with initial keywords of: 'root', 'kernel' and 'vmlinuz'. Then, select the line to edit (starts with 'kernel'), press 'e' again, and that's when you add the word "single", at the end of the line. I hope that's clear and helpful.
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/IMHO
//got nothin'
///this use to look better
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