In the discussion of the Intel F00FC7C8 problem, it was alleged that the instruction "unlk a7" will lock up a Motorola 68040 CPU even from user mode. Would someone care to test this on an old MAC? Is anyone aware of non-privileged instructions which kill other popular CPUs, like Alphas, SPARCS, and MIPS? -- Eric Michael Cordian 0+ O:.T:.O:. Mathematical Munitions Division "Do What Thou Wilt Shall Be The Whole Of The Law"