some notes noticed when upgrading to 5.04.2 --show-iface seems to not be able to show .hi files created when profiling is turned on. error recieved: mismatched interface file versions: expected 5042, found 5042p also, -hb seems to segfault immediatly but other types of heap profiling seem to work. this is on redhat 7.3 and the RPMs from the ghc site. I dont seem to be getting 'heapCensus' errors anymore which is good. John -- --------------------------------------------------------------------------- John Meacham - California Institute of Technology, Alum. - john@foo.net ---------------------------------------------------------------------------