Hi, I have tried to compile chuck with the option "-march=athlon-xp". It compiles fine but on the runtime when I try to remove a shred, chuck crashes whith this error: *** glibc detected *** double free or corruption (!prev): 0x085c2988 *** I find that happens in Chuck_VM_Stack::shutdown() on the line SAFE_DELETE_ARRAY( stack ); So when I compile without this flag, it works well ! Is there anybody who has an idea of what happens ? Thanks Cédric Krier