[horde] Help on tidy-ing

[Jānis]

Hi!

i have such message in server log:

PHP Fatal error:  Class 'tidy' not found in  
/usr/lib/php/Horde/Text/Filter/Cleanhtml.php on line 64, referer:  
http://serv/imp/message.php?mailbox=SU5CT1g&uid=184082

the tidy library is installed (latest CVS), tidy pecl module also, but  
making test on tidy pecl says it fails on test of parsing.

I have no idea what to do - the google is full of that kind of test  
failure reports but i found no solution.

i have php 5.3.8 supporting tidy and module is loaded (at least - by  
horde's test.php)

Janis