iPod Touch 3G won't go into sleep mode w/ button

[hyenas]

Here's the issue...

I press the power button to put the screen of my iPod to sleep and nothing happens, I CAN, however, use the power button to turn off the iPod. It just won't go into sleep mode with the power button. It will still go into sleep mode if I wait long enough.

-The button still works, just not for sleep mode.

Actions taken-

I've reset all the settings, and erased all content and settings.

Anyone have any ideas?

I'm on a dialup connection so no software updates are possible at this time, but still suggest them and I'll get them later...

 

[CylonGlitch]

This happened with one of my iPod Nano's. I ended up have to restore it to factory defaults and then that worked.

 

[hyenas]

Hmmm...

Someone on another forum suggested that it might be a difference between the software iPod updates and the App updates. This sounds likely so I'm off to find a wireless connection.

Thanks for the help!