[turba] Error when I open my Contact List from IMP

[Paolo Cavicchini]

Hello,
when I try to open the contact list from IMP, I can't see my contacts.
IMP shows me this warning:

"Uninitialized string offset: 0 in
/var/www/html/mail/horde/imp/templates/contacts/contacts.inc on line 45"

I think to have correctly configured Turba: I'm able to insert/modify/delete
my contacts without any problem.
I use mysql.

Please, could anyone giveme any suggestion?

Thank you
Paolo