I should have ran tests before posting but here are the results for my system; I do not have access to a Win98 machine to test. With /high the renders took 4.75 min., without 5.75 min for a speed-up of 21% Actual results will vary based on loading of the system. I hope this helps. Sam [System: 300MHz w/ 320MB running WinNT 4.0 SP6a]