screen saver never comes on

My Windows 7 screen saver is set to come on after 10 minutes of inactivity. Also in my power options I have it set to blank the screen after 10 minutes. Neither of these ever come on, or else it may come on for a moment, then go back to displaying the logon screen.

I have a wireless mouse. I have read that this can often send signals and make the screen saver never come on.

It's hard to believe that anyone with a wireless mouse simply can't use a screen saver. What can I try? It's a MS Optical Wireless Mouse 2000.

Registry tweak? Mouse options tweak?
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tpl415Connect With a Mentor Commented:
It seems that you have already checked your power options and everything checks out, but make sure that you have a screen saver selected and that it is indeed set at the 10 mins time that you want.  Assuming that all of those are set your mouse or possibly whatever programs you have running on your computer are what are keeping it on.  I have found with my wirless mouse that if it is on an edge or something is under it that it may stay on, but if it is just on a mousepad then that is probably not the issue.  Here is a link to some common reasons why a screensaver may not come on:

My mouse has a swith to turn it off when I am not using it.  Also check your power settings the energy star on helps
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