Please try to unsubscribe via mailman: https://lists.mcs.anl.gov/mailman/listinfo/mpich-discuss If that doesn't work, please mail me directly (not the list) with the error you are receiving and I will remove you from the list manually. -Dave On Aug 27, 2009, at 1:39 AM, Heming Xu wrote: > unsubscribe mpich-discuss