I want to forward the domain (no www.) to Google Pages and can't

I want to forward the domain (no www.) to Google Pages and can't : Ian Littman - Fix A Problem | Google Groups:

"Hello Lan,

Since you purchased your domain name from Google while signing up, you
need to remove the 3 A records that point to Google servers. These
will typically have the following IP addresses in the record:
64.233.179.121, 66.249.81.121, and 72.14.207.121.

Add the following A record:@ pointing to 64.202.189.170 with a 1 hour
TTL.

On the GoDaddy Domain Control page where you see the Advanced DNS
link, you will also see a link for Forwarding. Select Enabled and in
the Forward To: field type http://www.mydomain.com. (No dot on the
end). Click either 301 (Moved Permanently) or 302 (Moved Temporarily).
Do not use masking. Click OK.

WAIT 24 to 48 hours for the dns changes to propagate to necessary
servers around the world.

Larry - Power Poster"