Every time I leave my MacBook Pro plugged in overnight or for an extended period of time, my computer restarts and prompts me for my password even though I have that security turned off, and the whole screen is somewhat blurred over, with weird colors and pixels. Before I turned that security off it would re-prompt me to enter the password, however it would not let me type or move my cursor and go into sleep mode until the cursor and keyboard were working again. Anyone have this issue, especially with Yosemite? Or any idea of why it is happening?