"problem with shortcut/fatal error during installation" on other user accts

I ran into the same problem, but I think I have the solution. First, the problem isn't with iTunes, its an access problem with Windows XP. I tried to run the iTunes program from the Program Files, and I received an "Access Denied" error.

If you try to open the Program Files in My Computer\Local Disk(C:) and receive an "Access Denied" Error, that is why you are receiving a "shortcut problem/Fatal Error during installation".

Here is how I corrected it:
1) Shut down the computer and restart it in "safe mode". I had to look up how to do this, but I pressed F8 when it was restarting and I highlighted the "safe mode" and started the machine. The icons will be large, but ignore it.
2) Open a user that has administrative access -- I used the one user that has access to itunes.
3) Go to My Computer\Local Disk (C:) and right click on the "Program Files" folder. Select "properties" at the bottom.
4) Go to the Security Tab
5) At the top you should see one or two users that have access to the Programs File. One will be the user that itunes works on. Click Add, then click Advanced, then click Find Now.
6) At the bottom should appear a list of users. Select a user on which itunes doesn't work. Click Ok, then click OK again.
7) Give that user full access to the Program File by putting a check mark in the Full Access box.
8) Repeat for the remaining users.
9) Restart computer in normal mode.
10) Go into a user that had problems and click the itunes icon, and it should run.

It worked for me, I hope it works for you.

I have the same problem and tried the same fix. This is extremely annoying. Apple has joined Microsoft, Norton and all of the others with crappy software riddled with bugs on the new upgrade. Reminds me of Christmas day 2006 spending many hours trying to download music from a crashed itunes website. Apple should get together with Webkinz and Disney Channel because they have similar problems with multiple users on one PC. Only the primary user can run those applications online.

My kids are going to love syncing their ipods to a common desktop version of itunes. Way to go Apple! Not...

You are right this problem is a significant software issue! - in my feverish attempts to make it work, I tried to change the user rights to the other users on the computer and the installation for the other users fails as well. I even went so far as to delete users and attempt another install after wiping itunes completely off the computer and adding differnt users. I went so far as to dig into the registry to make sure that all kernals to itunes were wiped off the computer. On the good side, my itunes works and my songs are still on the hard drive! I'll wait like everyone else for a software fix from Apple so that my family can use their ipods...

You are right this problem is a significant software issue! - in my feverish attempts to make it work, I tried to change the user rights to the other users on the computer and the installation for the other users fails as well. I even went so far as to delete users and attempt another install after wiping itunes completely off the computer and adding differnt users. I went so far as to dig into the registry to make sure that all kernals to itunes were wiped off the computer. On the good side, my itunes works and my songs are still on the hard drive! I'll wait like everyone else for a software fix from Apple so that my family can use their ipods...

It worked! It's now running fine!

This works! I felt fortunate to find a post on this.... Everything was fine and then I-tunes was working on my user log on but not my wife's... Thank you!