So, I spotted this iMac up on ShopGoodwill (https://www.shopgoodwill.com/Item/53511352, MODS, not my auction). The screen is covered in vertical lines. At the current price, it would only cost $20 shipped to my location, so I'm interested, but I was hoping y'all could give some advice on what may be the root cause. I've read that there are some known display issues with the iMac G5's. Would this be a failing panel or perhaps a failing graphics chip? I'm interested in picking up my first G5 at the current price, but I don't want to go down a rabbit hole of expensive repairs. Thanks a bushel for the insight!