First time install, running Snow Leopard 10A432 On install I selected mail, itunes, keychain, safari and terminal plug- ins. IThe install got to Installing 5 plug-ins and hung, with the progress bar about 1/3 complete (stopped at just above the - in plug- ins). I cancelled and tried fewer plugins, same thing happened but there were fewer plugins to select. I was finally able to continue.
Once started there was nothing under plugins on menu bar, and could nothing happened when I selected Preferences. On another machine we got a "screen of death" when I plug Option ICON322 into it. Works fine on 17 inch macbook pro with 10.5 Fred
