I don't know based on that picture. I'd recommend that if you're having a problem with the performance, have the unit inspected. You can have a local technician come out, or call 800-SAMSUNG to have a service ticket set up.
I'm having vertical blue and sometimes red lines on my Samsung LCD.
Looks at this image:
Sometimes it stops for days, and then it comes back again.
I've disconneted the source, and tried different cables, but without any help.
Can someone help ?