Could the video be for a Razr M on ICS and she has JB, or vice-versa? Something similar could be true for having issues with instructions in the manual.
I just checked both ICS and JB user manuals and both give the same instructions for removing an e-mail account, i.e.,
apps > settings > accounts & sync
tap account to be removed
choose remove account
a friend of a friend on facebook told me how to do it. and it worked.
settings>email accounts>account settings>choose which account>scroll to bottom>remove account
i'm hanging my head in profuse shame because of how easy it is, plus i'm sure one of youze told me how to do this above.
MANY MANY THANKS - you guys are the best!!!
All is one of the column headings at the top "Downloaded" "Running" "All". If you cannot see all slide the column headings over to the left. Select the "All" tab. Now hunt through the apps listing.