Problem with webmail address book

[paranoidcookie]

I have an ISP 1.0.7 (upgraded from 1.0.5). Running Debian 6.0.1

Webmail works fine, except that when I try and add an address to the address book following the "Take Address" option

I get the error

ERROR
This page request could not be verified and appears to have expired.
Go to the login page (at which point I am logged out).

I can add addresses by going to address book, just not via take address. Does anybody have any ideas?

[beatricedns]

The Web Mail Address Book is a acceptable apparatus for autumn the email addresses and added acquaintance advice of humans you frequently email.You'll wish to abundance email addresses that you use frequently or addresses that you accept a harder time remembering.Your Web Mail Address Book may accommodate some of the aforementioned contacts as the account you wish to import. When importing, Web Mail will accord you an befalling to adjudge what to do with alike contacts.