No sleep when lid open

Hi,

Regardless of energy saver settings, my MacBook won't sleep without closing the lid, or specifically asking the machine to sleep.

I found this in the Console, which is suspicious. But I'm not sure how to kill this process w/o disabling CUPS. Any thoughts?

3/21/11 12:03:29 PM com.apple.launchd.peruser.501[958] (jp.co.canon.CUPSPS2.BackGrounder) Throttling respawn: Will start in 10 seconds
3/21/11 12:03:39 PM com.apple.launchd.peruser.501[958] (jp.co.canon.CUPSPS2.BackGrounder[5142]) posix_spawn("/Library/Printers/Canon/CUPSPS2/BackGrounder/Canon PS2 BackGrounder.app/Contents/MacOS/Canon PS2 BackGrounder", ...): No such file or directory
3/21/11 12:03:39 PM com.apple.launchd.peruser.501[958] (jp.co.canon.CUPSPS2.BackGrounder[5142]) Exited with exit code: 1
3/21/11 12:03:39 PM com.apple.launchd.peruser.501[958] (jp.co.canon.CUPSPS2.BackGrounder) Throttling respawn: Will start in 10 seconds
3/21/11 12:03:49 PM com.apple.launchd.peruser.501[958] (jp.co.canon.CUPSPS2.BackGrounder[5143]) posix_spawn("/Library/Printers/Canon/CUPSPS2/BackGrounder/Canon PS2 BackGrounder.app/Contents/MacOS/Canon PS2 BackGrounder", ...): No such file or directory
3/21/11 12:03:49 PM com.apple.launchd.peruser.501[958] (jp.co.canon.CUPSPS2.BackGrounder[5143]) Exited with exit code: 1
3/21/11 12:03:49 PM com.apple.launchd.peruser.501[958] (jp.co.canon.CUPSPS2.BackGrounder) Throttling respawn: Will start in 10 seconds

As you can see, over & over & over. Any ideas on how to stop this? Possibly seems like I need to gut all my printer drivers & reinstall them?

Thanks for any input.