[horde] PHP 4.3.5 and Horde 2.2.5

[GB]

Horde 2.2.5
Windows XP Pro
Apache 2.0.48
PHP 4.3.4/4.3.5
Apache James Mailserver 2.2

I just tried upgrading PHP 4.3.4 to 4.3.5 with a working version of Horde
2.2.5.  After the upgrade Horde refused to accept a login from any valid
account but after rolling back the PHP version to 4.3.4 it worked fine.  I
am using the combined IMP Horde login to avoid the double login issue and
James is SMTP/POP3 only, no IMAP support, yet.

Now, I am something of a newbie to Horde so I may be missing something
obvious but I can't figure out what it is.

I had an even more difficult time attempting to get Horde to work with PHP 5
beta, so much so that I came back to PHP 4.

If anyone can steer me in the right direction I would appreciate it.  TIA.

GB