My g07 takes a few minutes to warm up. Once screen shows up about half the top of the screen is covered in black. A few minutes later the screen is perfect except for the far right side of the screen which looks like it bends. There is also 1 line almost all the way at the right of the screen that runs down the screen. I also have an untested g07 board that I bought with the k7203 and both tubes. I was hoping to swap the working k7203 chassis and now accidently broken monitor. I was also hoping to buy a cap kit, width coil, hot, etc. and replace parts in the donor board. Thought both the g07 and k7203 chassis would be worth a trade to repair my almost failing chassis in my current ms. pac man unit.