I currently am working on a C665 with a strange issue. When the panel is closed the notebook will put itself to sleep in the usual way, and the power LED changes to the pulse to indicate that the device is asleep. However, when the panel is opened to resume using the notebook, the system will restart itself, instead beginning from the Toshiba logo and proceed to boot back in to W7. I should also note that each time this occurs, the "Windows Startup Recovery" option occurs, indicating that the system was not shut down correctly. Some things I have tried: Updated to latest Toshiba BIOS. Returned BIOS settings to their defaults. Swapped Memory to known good module, tested KGM in both memory slots within system. Confirmed that power settings are set to sleep/wake when power button is pressed. Ran a quick HDD fitness test using a parted magic USB stick. Checked for BSOD logs using BlueScreenView, none found. Ran src, no violations found. Any ideas? I have a good feeling the system is restarting itself, but in the event viewer there is a "Kernel Power" error, but it simply says "The system was not shut down correctly." Perhaps a bad driver? I'm not sure. Any advice would be great.