[horde] Fatal error: Failed opening required

[Zeus[Planet.DE]]

Hello,


I'm new here!
I've installed

IMP Version
IMP: 3.2.2 
PHP Version
View phpinfo() screen 
PHP Version: 4.2.2 
PHP Major Version: 4.2 
PHP Minor Version: 2 
PHP Version Classification: release 
You are running a supported version of PHP.
PHP Module Capabilities
IMAP Support: Yes

---------
And horde
---------

Horde Versions
Horde: 2.2.4 
PHP Version
View phpinfo() screen 
PHP Version: 4.2.2 
PHP Major Version: 4.2 
PHP Minor Version: 2 
PHP Version Classification: release 
You are running a supported version of PHP.
PHP Module Capabilities
DOM XML Support: Yes 
FTP Support: Yes 
Gettext Support: Yes 
IMAP Support: Yes 
LDAP Support: Yes 
MCAL Support: No 
Mcrypt Support: No 
MySQL Support: No 
PostgreSQL Support: No 
XML Support: Yes 
Miscellaneous PHP Settings
magic_quotes_runtime disabled: Yes 
file_uploads enabled: Yes 
safe_mode disabled: Yes 
trans_sid disabled: Yes 
PHP Sessions
Session counter: 1 
To unregister the session: click here 
PEAR
PEAR - Yes 
Recent PEAR - Yes 
Mail - Yes 
Log - Yes 
DB - Yes 
Net_Socket - Yes 
Date - Yes 
HTML_Common/HTML_Select - Yes



I think i maked the installation about the documentation. But when i go to
my Homepage and want to opened imp-Webmail i get this error message:

Fatal error: Failed opening required
'/var/data/websites/www/imp/lib/../../lib/Browser.php'
(include_path='.:/usr/share/pear') in
/var/data/websites/www/imp/lib/base.php on line 25

What must i do? Thanks and greets from germany.
Zeus