I moved servers and am now hosted on slicehost (VPS). The plugin directory and everything inside it belong to group www-data (apache's group) and have the permissions drwxrwxr-x.
When I try and update a plugin I get the "To perform the requested update, FTP connection information is required." message and a form to enter FTP details.
Those permissions are correct and defiantly writable by apache/php. What other files need permissions changed?
I am running 2.6.1, apache 2.2.3, php 5.2.0.