After installing the Modem, v2,0 update. Which went without difficulty. I could not detect any difference in the performance of the Modem, before and/or after. However, when I went to the Apple System Profiler, I was struck by how fast the profiler loaded. It loaded ar least 20-30 seconds faster than previously. I cannot explain the relationship between a modem and an application like the profiler. In any event, the installation went withou diffficulty and for better or worse, we go on to wait for OS 9.1.