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I have an older LG Optimus V. Early on the Optimus V and Optimus S used different screens and took different drivers. I had CM7 IHO installed on my Optimus V, but now want to sell it. I’ve been running CM7 since Oct. 2011. I no longer have the original ROM backup and downloaded a stock LG Optimus V ROM from the Internet. I installed it after wiping everything and all went well until I rebooted the phone. It booted up just fine with the LG logo and then I hear the Virgin Mobile voice and then the vibration. However, my screen is black. I remember this happening very early on with some mods with

On one of my older computers, no matter what game I am playing the computer can randomly crash, leaving me with a black screen and no error messages at all. All I can do is press the reset button and start all over again. There is also no particular moment or time period when this happens - the computer could sometimes crash after only 10 minutes of play, or sometimes crash after 10 hours of play. How can I fix this and what could be causing it?