I'd suggest downloading HWMonitor and checking the temperatures. If the GPU is over 85C or CPU over 75C, you'll have to open your laptop and clean the dust.
When you play crysis2 the video card consumes a lot of power. If it is hardware related It could be a bad video card or the power supply is short of power.
Try to update the driver.
Get it replace or check with tech support see if software patch can fix it.