Here's what happens : I wanted to upgrade from 1.2.1 to 1.2.2 (not really necessary but...).
The upgrade script went fine.
I still have access to the admin interface but the main page of my blog now generates an error 500 - internal server error.
This is a server with available mod_rewrite, the permissions are fine, I've tried to run the upgrade script again in short I've checked everything related to internal server errors in this forum and nothing worked.
Any help out there ?