[ingo] Missing Icon/Button: Apply Filter to current folder

[micha at pocomail.de]

hi,

recently i have installed horde webmail and after spending hours of 
searching i was able
to run the filter scripts with sieve and dovecot. my current problem is: 
as far as i have read
there should be a button next to the folder-name with a function like: 
"apply filters to current folder"...
but this button is missing ;( i remember that i have seen it, but that 
was before changing the whole
backend.php. so i would be happy for any help.

thank you!
micha