ksh and long command lines and wrapping

I use ksh and when I have a long shell command line, I often
can't even 
see what I am typing. I have to remember where I am at and
type blind.

This happens a lot if I have a long PS1 prompt.

Also I can't copy (and paste) from an xterm because the
long command line 
is not wrapped and the stuff I am typing is hidden.

Here is an example of copy and paste:

$KSH_VERSION                                                
                 
<
(#)PD KSH v5.2.14 99/07/13.2

You can't even see my prompt or the "echo "

The "<" on my ksh console is at one character
from right side of screen. 
(I think that means the line is too long.)

I normally don't have that problem with bash.

Is there some shell variable for ksh so the long command
lines will wrap 
to next line instead of disappearing?

- Jeremy C. Reed