[imp] undefined constants

[ulrich at muehlgasse.de]

Hy List, 
I'm just upgrading to the latest release of Horde and IMP. 
Horde: 2.2.5 
IMP: 3.2.5 
Alle tests with test.php just answering "yes" for all checks, I'm able to 
login to the imap server but: 
 
IMP complains about some constants, whitch are not defined. 
 
IMP_ENCRYPT_NONE 
IMP_MAILBOXSTART_FIRSTUNSEEN 
IMP_MAILBOXSTART_LASTUNSEEN 
IMP_MAILBOXSTART_FIRSTPAGE 
IMP_MAILBOXSTART_LASTPAGE 
 
What are these variables for? Can i add them manually? Which values must be 
stored with them? 
 
Greetings Uli