thanks leon I could find plenty of stuff for 2.0 and 2.1 kernels but the modern world was eluding me. -- Craig Ringer GPG Key Fingerprint: AF1C ABFE 7E64 E9C8 FC27 C16E D3CE CDC0 0E93 380D -- if it ain't broke, add features 'till it is. (or:) while (! broken) { feature ++ ; }