[sorry, that sent before I finished it] I have some funny lock files in "/share/grid-security/gridmapdir" see below). Can any one sugest what these are or where they come from? To me, it would seem like something must be "going wrong" if these exist, since they seem like very strange file names. Ian. %2fc%3dfr%2fo%3dcnrs%2fou%3dcppm%2fcn%3dvincent%20garonne%2femail%3dgaronne% 40cppm%2ein2p3%2efr %2fc%3dfr%2fo%3dcnrs%2fou%3dlal%2fcn%3dcharles%20loomis%2femail%3dloomis%40l al%2ein2p3%2efr %2fc%3dfr%2fo%3dcnrs%2fou%3dlapp%2fcn%3djean%2djacques%20blaising%2femail%3d blaising%40lapp%2ein2p3%2efr %2fc%3dit%2fo%3dinfn%2fou%3dpersonal%20certificate%2fl%3dcnaf%2fcn%3dmario%2 0reale%2femail%3dmario%2ereale%40cnaf%2einf n%2eit %2fo%3ddutchgrid%2fo%3dusers%2fo%3dsara%2fcn%3dron%20trompert %2fo%3dgrid%2fo%3dukhep%2fou%3dhep%2eucl%2eac%2euk%2fcn%3dben%20waugh %2fo%3dgrid%2fo%3dukhep%2fou%3dhepgrid%2eclrc%2eac%2euk%2fcn%3dstephen%20lhc %20burke %2fo%3dgrid%2fo%3dukhep%2fou%3dhepgrid%2eclrc%2eac%2euk%2fcn%3dsteve%20trayl en %2fo%3dgrid%2fo%3dukhep%2fou%3dph%2egla%2eac%2euk%2fcn%3dgavin%20mccance %2fo%3dgrid%2fo%3dukhep%2fou%3dphysics%2eox%2eac%2euk%2fcn%3dian%20stokes%2d rees %2fo%3dgrid%2fo%3dukhep%2fou%3dpp%2erl%2eac%2euk%2fcn%3dstephen%20burke