[horde] preferences sql causes php.exe crash (win32)

[Justin]

I'm having trouble using mysql to store user preferences. If I change
    $conf['prefs']['driver'] = 'none';
to
    $conf['prefs']['driver'] = 'sql';
then on the Windows 2000 Apache 1.3 server I get:
   "php.exe has generated errors and will be closed by Windows. You will 
need to restart the program."

With 'none' horde, imp, and turba all run fine (albeit without 
prefeences), but with 'sql' I get the above message popup on the server 
console, and this in Apache's error log:
[Mon Nov 17 14:20:54 2003] [error] [client 172.16.30.18] Premature end 
of script headers: d:/programs/php/php.exe

Once I clear the popup the browser displays "Internal Server Error"

I've tried downgrading PHP 4.3.4 to 4.3.1, but no luck. I'm running PHP 
in CGI mode, and loading PHP as a module cause Apache to crash when I 
access the horde framework from Mozilla 1.5.

It's worth noting that I had to replace php_mcrypt.dll (as per 
http://www.devside.net/web/server/win32/php-bin
) in oder to get past a different error related to loading the 
php_mcrypt extension.

At this point I'm only using horde, imp, and turba, and they are all the 
production/stable/released/latest versions as of Nov,16,2003. I had 
earlier versions of horde, mysql, php and pear running fine, but I 
wanted to update the entire environment so installed from scratch. I'm 
stumpped as to what might be the problem.  Any ideas?

Thanks,
jz