Ok, i’m now running on 1.5. I hope this fixes my pingback problem. I did the usual database and file backups before the upgrade. I hit a minor problem when trying to view the site after running upgrade.php. The pages were blank. At first i thought it was a permalink or theme problem. It ended up being that i needed to update my pointer index file to include the new WP_USE_THEMES option. Only thing new i’ve noticed is the planet.wordpress feed below the official one on the Dashboard.