Sony SDM-HS73P 17" LCD Monitor "hs73 wont power" Questions

...HS73 problem Hello. My power went off and when i turned my computer back on, the screen was like greenish. Like as a filter. I tred to go color settings and it wont let me change green. I goes to red ...

...HS73 monitor. She had a green screen with a loose cable to he PC and she tightened and checked cables. I also checked the cable and disconected power tro the monitor for 20 seconds. Picture is good ...