Samsung 50 in. HPS5033X/XAA colored lines running vertically and won't go away.

How wide are the lines. Do they change width? Where on the screen are they located?Connections on the c boards at the bottom to the panel flex cables or bad c board itself can cause 2 inch wide verticle bar. Before touching these connectors be sure power supply is disconnected from the 2 sustain boards on the sides. If you don't there will be an arc that will destroy the flex cable thus you will have to replace the panel. If C boards or connections don't fix it the replace the plasma panel. If the lines are thin lines then panel is likely bad. Contact Panasonic even if out of warr they may help.

I have the same problem, our new samsung 50 inch was delivered by argos, and has 2 inch vertical line in near the right side middle of the screen, its such a pain,i didnt know a new plasma could have bad boards, does this mean argosput in old boards inside a new plasma then? imringing them tomorrow they will have to change it