After much deliberation (I was totally happy with 9.04) I just upgraded to 9.1, mostly to take advantage of iTunes burning/Authoring Support Updates etc.
Now, my machine is seriously lagging--on start up it's deliriously slow; iTunes takes forever to start up; even Explorer seems to be slower, as well as less stable.
To top it off, I can't install the Authoring Support Update. When I try, the error message says that iTunes must be installed first, which, of course, it is.
So, at the end of the day, I still can't burn with my new Iomega Predator USB CD-RW using iTunes. And when I do with Toast, I make coaster after coaster...
Any ideas?