can't set a trigger

[jmariem]

I'm using a OS 10.4 on an iMac.  I'm very new to QS, but I like it.
I'd like to set a simple trigger to get new mail.  I can get the mail
using QS, but when I set the trigger (getting the same panes–Mail &
Get New Mail) and try to use it, nothing happens.  I had this trigger
once before, but somehow it died.  So I deleted it and now I can't get
it back.