i don't know when it started, but before windows shuts the computer off for me. Now, it won't...instead, that stupid safe to shutdown screen comes up... under device manager, computer, i don't know why i got 2 entries 1. standard computer 2. ACPI PC the ACPI doesn't haf a red mark or yellow exclamation mark on it..but when i click properties..it said no driver is installed the standard pc one works fine but i read on the web the acpi one should be enabled for windows auto shut the comp...windows won't let me uninstall the standard pc one... i m sure my computer supports acpi..because as i said, windows know how to shut the comp for me before please advice what i can do