I'm not able to tell from just this information alone. Are you getting this symptom from other sources as well, or just with the PC input?
Two suggestions come to mind - try changing the cable to see if that helps, and the other would be to check to see if you have the latest drivers installed for your computer's video card.
bought this tv 8/7/08 now this happened when first started i turned off tv for few hours turn on everything was fine for couple days now when i turn on the lines seem to get worse picture here.
See lines in center top and left side Its worse over time whole left side gets all color crazy what is wrong?
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