To repeat findings on a Linux machine (redhat9, x86, 2.4GHz): Old New 0.74 0.22 0.74 0.22 0.74 0.22 0.74 0.22 0.72 0.21 0.76 0.22 0.74 0.22 0.77 0.22 0.75 0.22 0.74 0.22 I also got the same (?) failure as tim described: test_list make: *** [test] Segmentation fault Jeff