[joshzayin]

I don't have that problem on my MBP with 10.6.8. How are your Energy Saver preferences set up? Trashing the plist and resetting it to how you like it might work--it's possible that the plist is corrupted.

[pygy_]

I'll try to reset the plist, then, thanks for your help.

                       Battery         Power Adapter 

    Computer sleep:    10 min          45 min
    Display sleep:     2 min           3 min
    Put HD to sleep:   Yes             Yes
    Wake up from LAN:  Yes             Yes
    Dim before sleep:  Yes             Yes
    Boot after power failure:          No