A power outage damaged my ACD a few days ago. The display is dim and flickering now. I brought it into the Apple Store and the Geniuses diagnosed it as having a bad LCD panel, costing more than $800 to replace. I'm not convinced the LCD panel is the problem here. The display works perfectly fine at the lowest brightness setting. I think it could possibly be the inverter board or something else power related. What do you think? What are my options here?