I implemented roundcube mail as a mail manager on a virtual private server of mine. Everything works fine, but the address book import utility. After extracting the CSV file from my desktop pc address book, I follow the instruction to import contacts: address book, import, browse, import button. The procedure works until "browse". When I press the import button, it reloads the import page and no contact has been imported. do you have any experience about that? Am I missing anything in the roundcube config? Maybe a tmp folder where to upload csv, vcf files? Permissions? I have checkd and I have a tmp folder in the root of roundcube, set to 777. Users of my server are getting frustrated and really don't know what's not working. Thank for your preciuos help.