|hi nikki, first of all, unplugging the tower via power plug is not a good practice. You can damage your motherboard that way. The safe way to shutdown a pc is either the start/shutdown way, and if that doesn't shut it down, then press and hold the power button on the front of your tower for about 5 secs or more and it will shut down safely.|
Sounds to me that if you unplugged the monitor from the tower numerous times that you prpbably bent some pins in the connector. Check and see if that is what is happening. If so, you will probably need either a new cord, or if the cord is not removeable, you will need another monitor.
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