Every now and then when I unlock my screen on my nexus one, the screen doesn't seem to be displaying any red pixels (I think). But I turn the screen of and on again and the screen is back to normal. This started a couple of days ago and is becoming more and more frequent. Help!

 

My phone has not been dropped or been wet since I got it a month ago... but good thought

 

Thanks for the tip, I've downloaded the app, so I will try it out next time I get the red pixels not working (Blue Screen?)

And no, I haven't installed a home replacement app

It hasn't been so frequent so far this week, I think it has happened once in the last 4 days? hopefully it doesn't happen again, I'd just like to know what was causing it.