Too much assembly language and not enough FPU support. It was pointed out that I should simply try recompiling with the coprocessor option. :l Sure easier than writing it in assembly, eh? ahem. thanks for you time - Matt Thomlinson University of Washington, Seattle, Washington. Internet: phantom@u.washington.edu phone: (206) 528-5732 PGP 2.0 key availaible via email or finger phantom@hardy.u.washington.edu