[kronolith] CVS HEAD error editing

[AJ]

Hello,
  I am using current CVS HEAD and a sql backend for Kronolith (MySQL).
I can add events fine, but when I try to delete or edit them I get this error..
A fatal error has occurred:
Required 'phptype' not specified in calendar configuration.

[line 396 of /usr/local/websites/webmail2/docs/kronolith/lib/Driver/sql.php]

Details (also in Horde's logfile):

I can supply more details if needed.  Thanks for any help.

AJ