Help Galaxy Tab lines across screen

[Defy]

hey everyone

Today my galaxy tab p7500 started playing up when I was watching a few videos on mx player i noticed the lines across the screen, which i assumed at the time was the video,then i noticed it was doing it on the main launcher screen, only in landscape mode though, potrait is fine. I am running task 10 and have done complete wipe of everything in cwm. i havent yet done areturn back to factory os though.

Is there a fix for this or do i need to return back to point of sale? Bit worried about warrenty and having rooted

 

[Szadzik]

Unroot and return.

 

[Defy]

Unroot and return.

Damn, and is there a root counter to worry about?

 

[Szadzik]

Damn, and is there a root counter to worry about?

I am not aware of a root counter.