upgrading lenny to squeeze question

[John Lindsay <jclind@sentex.net>]

I have been following the following info on
> http://www.howtoforge.com/upgrade-debian-lenny-to-squeeze-in-a-few-simple-steps
My last root teminal command was
> apt-get dist-upgrade

It seems to be working ok up to this screen ---
> Package configuration
>
> ┌──────────────────────────┤ Configuring grub-pc 
> ├──────────────────────────┐
> │ │
> │
> │ In order to replace the Legacy version of GRUB in your system, it is
> │ recommended that /boot/grub/menu.lst is adjusted to load a GRUB 2 boot
> │ image from your existing GRUB Legacy setup. This step can be
> │ automatically performed now.
> │
> │ It's recommended that you accept chainloading GRUB 2 from menu.lst, and
> │ verify that the new GRUB 2 setup works before it is written to the MBR
> │ (Master Boot Record).
> │
> │ Whatever your decision, you can replace the old MBR image with GRUB 2
> │ later by issuing the following command as root:
> │
> │ upgrade-from-grub-legacy
> │
> │ <Ok>
> │ │
> └───────────────────────────────────────────────────────────────────────────┘ 
It seems to have stopped there as the <Ok> is not highlighted -- how do 
I proceed from this point?

John