Message authentication at startup

Hello

Since upgrade to snow leopard, I start my mac a message asking me to authenticate the admin account to write to the system.

you an idea of the setting or how to disable this prompt?

Thank you in advance

Is it happens every time you log in?

With happens on all accounts?

Do you had a stroke combo update?

thank you for your response as fast Internet always surprise me, I'll test with a guest account, I thought it was related to Intego I uninstall but the problem persists. If you have any ideas or precedents on this message I am a buyer. I spent the and secu corporate system, but still ... propblem persist. Good day to all

Maybe an event at the opening (so that it does so only on account ...)?

Look in the activity monitor is the father, it can help (launchd or an application that launches at startup and then launching a second process behind ...)

Remove incompatible third-party startup items.

1. Start up from your Mac OS 9 System Folder or a Mac OS 9 CD-ROM disc. If your computer only starts from Mac OS X, start up in Safe Mode.
2. Open the Mac OS X hard disk.
3. Drag third-party items out of the /Library/StartupItems and /System/Library/StartupItems folders. You may wish to temporarily store them in the Mac OS X Users folder. If you're unsure whether an item is a third-party item or an Apple-installed item, don't move it.
4. Restart the computer in Mac OS X.