weird outlook 2003 situation.

i got an email from bob a couple of days ago.  now, whenever i forward
any email, it forwards it to bob.  i contacted the IT department, and
they sent me a test email, i forwarded that email to brad.  brad gets
the forwarded email, but so does bob.  i did not put bob on the
forward list.  i do not want to unwillingly forward any emails to bob.
 why does this happen. what can i do?
joeyp