You can't svn "over" the existing install, you have to move it away first.
SVN checkout is what you should do and upgrade the DB via setup.
Ralf
[/quote]
So:
- SVN checkout to /tmp
- copy /tmp/egroupware/ to /var/www/path_to_existing_egw/
- point web browser to /var/www/path_to_existing_egw/setup/index.php, upper login, upgrade DB
(sorry for asking/bothering so much, just want to be sure)
[/quote]
OK, I did it 
All went OK on Setup but after I login I have problems with FelaMiMail:
Warning: imap_open(): Couldn’t open stream in /var/www/html/egroupware/emailadmin/inc/class.defaultimap.inc.php on line 431
Warning: Invalid argument supplied for foreach() in /var/www/html/egroupware/felamimail/inc/hook_home.inc.php on line 90
Other things are working just fine (for now)
Any idea?
[/quote]
Oh, and in the Tracker:
Warning: Invalid argument supplied for foreach() in /var/www/html/egroupware/tracker/inc/class.botracker.inc.php on line 659