No, Tru64 is not to blame.
Currently I work with Tru64 V5.x, and from the replies given above there is one (and only one) solution that works for me: cntrl-v.
And I remember having seen it with Digital Unix V4.x and even V3.x.
So let's see why it shouldn't work for you.
Two ideas:
1) Are you in vi mode?
If so, type 'set -o emacs' and try again.
2) Is cntrl-v used for anything else?
You could verify with 'stty -a'
hope this helps