[sync] Can't sync contacts (invalid addressbook)

[Karsten Fourmont]

Hi,

> May 03 11:29:35 HORDE [error] [horde] SyncML: Error in adding client
> entry due to replace request:Invalid address book [on line 114 of
> "C:\PHP\pear\Horde\SyncML\Sync.php"]

Horde SyncML uses the address book stored in the turba preference 
"default_dir". This has to be set and be writeable by the user.

It can be set from Turba/Options/Searching Options (somewhat misleading)
as "Default directory for your personal addressbook, contact lists, and 
searches."