run the preboot system assessment. turn the computer off>press the fn key down>turn it on. keep on pressing the fn key down until the preboot system assessment screen comes on. when you see the color bars, check if you still have the problem. if the yellow lines are still there, you need to try to reseat the lcd cable. then try again.

 

-kArL dCsE™

Not only on the Dell forums but here as well:

 

http://forums.devshed.com/computer-hardware-103/single-pixel-lines-in-dell-inspiron-screen-382937.html

 

What is your screen model number?

we all have the 1440x900 screen, not truebrite

i put in a complaint to the better business bureau and got a call from dell on the matter.  after reading off my tag id, or whatever it is they want, i was told that because i was no longer under warranty, the best she (the lady on the phone) could do would be to give me the number for the section of dell for out-of-warranty claims, i.e. the sales department.  i could see maybe giving me the bird if i was asking for a whole new laptop, but i'm not.  this is COMPLETELY a DELL issue.  i'm very meticulous and particular with my hardware and i take exceptionally excellent care of it.  the problem i see here is that dell doesn't want to cough up for THEIR screw-up.  what's the matter dell?  have you grown so big that you no longer understand what it means to do the right thing instead of the cost-effective thing?  you're effectively giving your grassroots following the middle finger on this one, dell.  i could see getting away with this if it were only one or two people, but the fact of the matter is that you've put a faulty screen on ALL 9300s.  we're growing restless, dell, and we want some results.