GroupWise v8.0.0, NetWare 6.5 SP8

I have one user sending an email out to multiple people. When she types
the email address out and presses the comma or semicolon, it does not
input and accept that address, it just continues on the same line as she
types more addresses in.
So her BCC: field looks like: marysmith@aol.com; smithlarry@gmail.com;
barney@gmail.com

Her email is then only sent to the first person in the list.

On my client and other PC's, whenever you enter an email address in and
press the comma or semicolon, it acts like the enter key and accepts the
address, then goes back waiting for another address.
My BCC: field would look like:
marysmith@aol.com
smithlarry@gmail.com
barney@gmail.com

My email would be sent to all 3 addresses.

Is there a setting that controls this?

Thank you
Frank