F8: problem with dial-up

[Michael Klinosky]

OK, I installed F8 (from the Live CD) onto a machine that uses a dial-up 
connection. It had F7 running fine. I did a fresh install (didn't just 
update) to get rid of some issues with the F7 install.

But, now I can't get it to dial the modem. I believe that I configged it 
properly (in Admin > Network). I hit 'Activate', and the status reports 
'Active'.

But, clicking on the button (in the 'Modem Lights' does nothing. So, I 
tried the command in a terminal:
/sbin/ifup ppp0
no config file found for ppp0            (or something to that effect)

Did something change in F8? Or, maybe I forgot some crucial step?