> What OS are you running? GNU/Linux on both; something Libc5-based, and Debian2.2r2. > Tried running GDB and seeing the code where it locks up? That's what I was in the process of trying (I'd reconfigured/ recompiled to have the symbol tables around to help gdb) when it was discovered -with-debug and friends made everything work.. It will be several more days before I have another 'window of opportunity' to hunt around on these production systems. Watch this space. -- Chris