vim problems

After using vi and vim for many years it suddenly started acting up.

Running debian 8.2 on a thinkpad T420 w/ vim 7.4.488-7.

On a fresh install of debian 8.2, I copied the vimrc from debian 7.9
and plugged it in. That may have been my mistake, however I've done
this before with no problem.

In the insert mode:
down arrow moves the line down, replacing with a cap B.
up arrow gives the same result except it is replaced with a cap A.
left arrow, same result except it's replaced with a cap D.
right arrow, same as above w/ cap C.

Once I hit the escape key to get out of the insert mode it seems to
function normally.

Also, it doesn't show the "insert" indication at the bottom left of the
screen. I'm left to guess.

My .muttrc file calls vim as it's editor and it acts normally.

It looks like I don't know as much about linux and/or vim as I thought.

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