Steve, are you using Default Folder 3.1.5 under Classic? If so, I recommend you switch over to Default Folder X1.7. I am running the latter on OS 10.2.6 with iTunes 4.0.1 without any problem. I have Default Folder X1.7 installed for all users. Mike >I upgraded to iTunes 4.0.1, and it would not open. >Re-installed, restarted, repaired permissions, etc. >Finally, turned off Default Folder 3.1.5, and then and only then >would iTunes open (boot). > >Anybody have similar experiences? > >Thanks, > >Steve -- Almost never pointless.