Phone Book access problem - Error 624

Yesterday i installed Fresh Windows Vista on one of my computer. As i am using a Dial Cup broadband connection, i tried creating a dialer on this system but it wont remember my my broadband password as well as "All Member" option. I created another and then another dialer but yet the same thing. Now i have 3 dialers but none of them remember the passwords. I did eventually get one of the connections to remember the password and this user but it ends up saying

"Vista was giving an error 624, Cannot update phonebook."

I dint found anything working on Microsoft sites or on Google. Finally came here seeking help. Thanks.

I had the same problem. Finally I managed to rid of it by copying the rasphone.pbk - file from my friends' computer, which also had Vista OS.
I replaced my (damaged?) rasphone.pbk file with the new one and internet started working. I'm using the E169-model of Huawei usb-modem (Virgin Broadband).

The rasphone.pbk-file is in
"C:\Users\All Users\Microsoft\Network\Connections\Pbk"

I also restarted my computer for a number of times and installed some updates, so I really don't know which one really did the trick...