The Login items is a user account item, and you can choose
to select things the computer runs on startup by adding them
in your user account. There may be another way to have the
computer run such a thing by default on all accounts, but I
am not sure how; nor do feel anyone would want to mess up
the normal and healthy function of the OS X if it is done wrong.
{In fact, the item you may get from the linked item in a previous
post may not be something that would run on initial startup, but
it may be possible to have it run as a desktop movie behind the
icons and dock, instead of the background static image; this is
something that can be done to some extent, but maybe not to
the degree you are wanting. If this could be done, it may be an
item you could look into selecting from System Preferences
Desktop and screensaver; and choose the desktop mode, and
see if it allows you to choose more than just an image. Mine
does in Tiger 10.4.11; while my computer isn't powerful enough.}
In the older OS X versions, you can use System Preferences to
find the Accounts, then see Users within it; and there is a tab
or button to access Login items, and a plus/minus clicker to
add or remove items from the panel. While this was evident in
OS X 10.4.11, it may be different in Leopard 10.5.x. Since I'd
removed 10.5 from one of my machines it was in, and decided
to keep them all at Tiger, I did not become too familiar with 10.5.
In any event, all you have to do is direct the computer to see the
file and it will do the rest of the effort internally, as suggested.
After you do this, I'd suggest you could run Disk Utility & then do
the thing called 'repair disk permissions' on the Macintosh HD.
Good luck & happy computing! 🙂
{ edited. }
