LG DU-42PX12XC 42 in. Plasma HDTV "42px12x capacitor" Questions

...is a link on how to fix this issue. I hope this helps

I have a LG Plasma 42 du-42PX12X/12XC, and when turn on is working perfect and after 15 min the the image no appeared more. If turn off and after 2 or more hours it work again very well, but after 15 ...

...42PX12X. When powered on, it displays verticla lines of various colors, and widths throughout the screen. Here is a picture of what i am talking about: ...