I found a small speed increase on going from 10.4.1 to 10.4.2, as well as increased stability. Eddie Hargreaves has good advice, and I agree with him. However, whether you should upgrade depends on what you have to use it for. I use 10.4.2 for about 80 percent of my work, but I found Spotlight to be serious drawback when doing many searches during the day on disks with large numbers of files. For that I have to go back to 10.3.9. Spotlight cannot find quite a few files I know that I have, and that I need for continued work, but I can always find them in 10.3.9 using the older find system. For some work on smaller numbers of files, Spotlight is very fast, but usually it delays things by finding too many of the wrong files and getting a bit bogged down as a result. 10.4.2 would be a lot better with the old find file. In other respects such as music, pictures, e-mail, and browsing it is significantly better. George Harvey On Aug 1, 2005, Eddie Hargreaves wrote: > If you already have 10.4, I definitely recommend updating to > 10.4.2. I can't > speak to any speed increases, but there are a lot of improvements > over and > under the hood (especially regarding Dashboard widgets). > > One way to help avoid problems when updating is to use the combo > update. I > also recommend disabling any third-party preference panes, menu > extras, Mail > plug-ins, Safari hacks, etc. And, of course, always have a full, > bootable, > clone of your system before updating. That way you can go right > back to > where you were if you find a problem with 10.4.2 that is otherwise > unfixable.