Problem in Attachement section in imp 2.3.7 cvs

[KOF FL]

Hi,

I can't attached any attachment when I compose message.
Does anyone can advise me what wrong in my side?
The below message was extracted from Help
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"Attachments"
This section displays a list of files already attached to your message. To 
Delete an attached file:
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My configuration:
OS: Sun Sparc Solaris 2.7
PHP: PHP 4.0.4pl1
SQL: MySQL 3.22.32
Horde: 1.3.4-cvs
IMP: 2.3.7-cvs
Turba: 0.0.2-cvs

FTP Support: Yes
Gettext Support: Yes
IMAP Support: Yes
LDAP Support: No
MCAL Support: No
Mcrypt Support: Yes
MySQL Support: Yes
PostgreSQL Support: No
XML Support: Yes

magic_quotes_gpc set to Off: Yes
magic_quotes_runtime set to Off: Yes

Session counter: 1

PEAR - Yes
Mail::RFC822 - Yes
Log - Yes
DB - Yes

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Best regards,
KOF_FL
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