[horde] Error Trying to Set Up Horde Modules

[Brian Sedlacek]

I've only been using Horde for about 2 weeks, but it's great.  I'm very 
impressed with all of it and the modulization is a great benefit.

I've been trying to get DIMP running and I finally got it up tonight.  To do 
this, I upgraded the core, IMP, and DIMP to the HEAD release.  The problem is 
that when I go to the setup screen and select one of the modules I get a blank 
screen in the frame where the configuration should be.  When I check the 
apache log, I get the following error:

Call to undefined method domdocument::load() in ... \\DOM.php on line 72

I'm running Apache 2.2.3, PHP 5.2, MySQL 5.0, with trean, kronolith, klutz, 
imp, dimp, turba, gollem, ingo, jonah, nag and vilma. 

I've tried searching the mailing list archives, but no go.  Any suggestions?