'rngpatch.zip' contains two files: 'rngnorm.dif' and 'rngs32b.dif'. These implement an addition to the RNG which, although slower, produces a more random generator. It does this by using a biased coin to generate a series of unbiased coin tosses, which produces a very random string of bits. Unfotunately, this algorithm requires some underlying process to generate the coin tosses, causing a decrease in speed. Both patch 'birth.c', 'load2.c' (or similar), 'save.c', 'z-rand.c', and 'z-rand.h'. If your 'z-rand.h' file defines 'rand_int(M)' as '((s32b)(Rand_div(M)))', you need 'rngs32b.dif', otherwise 'rngnorm.dif'. Apply the patch using the options '-l' and '-F5'. Eric Bock kobe@micron.net