Konsole color highlighting

[Paul Lemmons <paul.lemmons@xxxxxxxxx>]

What causes a konsole session to show or not show colors? I have one 
machine that "ls" will show color coded files and vi will show syntax 
highlighted text. On another machine everything is green.
begin:vcard
fn:Paul Lemmons
n:Lemmons;Paul
org:Tucson Medical Center;Information Services
adr:;;5301 E. Grant Road;Tucson;AZ;85712;USA
email;internet:paul.lemmons@xxxxxxxxx
title:Lead Systems Software Engineer
tel;work:520-324-1034
tel;fax:520-324-1206
tel;pager:paullem@xxxxxxxxx
tel;home:520-722-2642
tel;cell:520-603-7392
x-mozilla-html:TRUE
url:http://www.tmcaz.com
version:2.1
end:vcard

Attachment: smime.p7s
Description: S/MIME Cryptographic Signature