While checking weather and playing a game, screen went black and CPU started make a whirling (fan?) noise. Held power button in and it turned off. >5 mins, pushed power button in and would not boot. Tried again - would not boot or turn off. Had to turn off @ power strip. Computer has made whirling sound before, but could usually turn it off w/power button, wait then it would come on ok. Also, recently when using internet, the status bars were black & could not see icons. However, reset properties and this went away.