Where are stored pear user preferences?

Hi, I was currently in preferred_state devel. I had to built again php on my system, from the same version and with the same config options. Thereafter a 'pear -list' displays nearly all package twice, not always to the same version. As I have only one pear directory (/usr/local/apache2/php/lib/php/), I decided to delete this directory content, then ran 'lynx -source http://go-pear.org/ | php' to re-install pear. I hoped this would give me a new fresh PEAR installation from scratch. All seems OK, except all packages are in a 'devel' state, so there are other files where this information is stored. So if i want to unintall/install PEAR completely, what other files do I need to erase? Thanks -- Thierry Bothorel