hi midlife!
Yes I do use norton internet security 2005. And I have been getting an hourglass and now window opening.
excellent. thanks for that! this is going to be an extremely long post.
okay. i think you've got something a bit unusual going on here. i think you might be getting
two different problems happening at the same time.
the really exotic thing about your case is not the "error-message-free" itunes launch failure when you try to launch itunes. it's your getting the "itunes has encountered an error ..." message when you
switch the PC off. that implies that your itunes is actually
trying to launch, but it's being suppressed. (the likeliest candidate for what is causing the itunes suppression in your case is your Norton Internet Security 2005.)
when the suppression is lifted as you shut down the PC, itunes gets the chance to launch properly ... and then the
second problem kicks in. that's most likely being caused by a broken QuickTime, but there are some other possible causes, too.
so first we're going to check on the NIS 2005 launch suppression. the aim here is to try to get you to the stage where your itunes gives you the "itunes has encountered an error ..." message when you try to
launch your itunes. once we've got to that stage, we're going to check to see if you've got a broken QT, and try to deal with that.
Phase one: checking for NIS 2005 itunes launch suppression
I want you to try the Lorraine M technique from this post:
Lorraine M: NIS/itunes problem rectified
do you then start getting an "itunes has encountered ..." message when you try to launch itunes?
Phase two: what to do if you then start getting an error message when you try to launch itunes
Itunes has encountered a problem and needs to close
the first thing that i check for when people report getting that message when they try to
launch their itunes is a broken
QuickTime.
try to open your QuickTime. does it launch properly, or do you get an error message?
if you get an error message, the first thing we'll try is a careful standalone QT 7.0.4 reinstall.
download and save a copy of the QT 7.0.4 standalone installer to your hard drive. (we'll run the install from there rather than online.)
switch off antivirus and antispyware applications prior to the install.
Quicktime 7.0.4 Standalone Installer
if that install goes through okay, does your itunes launch properly again?
(if you get an error message on the QT standalone reinstall, let us know what it says. include error message numbers if you're getting any.)
if you get the itunes has encountered error, but your QT is launching fine post back to let us know. we'll start exploring a few more possibilities.
love, b