I have a problem with my 17" Sony flat CRT. WhenI turn it on, the whole screen is brighter the it should be, and over the whole image is about 6 or 7 white diagonal lines, with snow too. The screen shows my boot-up until after like 15 secs the screen goes to sleepmode and won't come back. I think it's a hardware failure, but does anyone know what it could be, and what it would cost to fix it. It's a quite expencive screen(it WAS) ,and very good on the eyes and I'd like to save it. Thanks for any help at all.