application still lauched at startup after removing it from "startup applications"

[Teo]

I went to System->Preferences->Startup Applications and I added a command to be launched at startup, the command being "unclutter -idle 1 -root".
It worked fine: it was always launched at startup.
Then, after a few reboots, I went to Startup Applications again and I removed the application, by selecting it and clicking "Remove".

Now it is not listed there any more, but it is still run at startup every time I reboot!!!!!!

The worst thing is that I don't know how to stop it from being run at startup, since it is not even listed among startup applications.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: gnome (not installed)
ProcVersionSignature: Ubuntu 2.6.35-30.56-generic 2.6.35.13
Uname: Linux 2.6.35-30-generic i686
NonfreeKernelModules: nvidia
Architecture: i386
Date: Thu Sep 1 23:46:00 2011
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.utf8
 SHELL=/bin/bash
SourcePackage: meta-gnome2

[Teo (teo1978)]

Sorry I think I was mistaken. It looks like unclutter installed on its own a startup script that launches it at startup (so my adding it in startup applications was useless in the first place).

Sorry for the noise