Weird pixel problem on macbook

I have what looks like 2 stuck pixels on my macbook. They appear on top of the dock, but scrolling the pointer over them and they appear under the pointer. And when I hide the dock they disappear. I have a screencast of it but dont know how to get it up in the thread.
I've tried the pixel fix widget 4.0 and leaving the screen off for a while but no luck.

I did have a problem with 2 pixels before in the same region of the screen (I'm guessing its the same 2) but after turning the screen off they were fixed straight away.

Running OS 10.4.11 on Macbook C2D 2.16GHz

 

I shut down the mac and when i rebooted it was fixed!

I have a feeling that it may not have been stuck pixels after all; when in dashboard, and you click on the manage widgets bar, you can see that in the background the dock rises up the screen a bit. When this happened the 'stuck pixels' also rose with the dock. so my guess is it must have been an image problem when the dock was loaded from .plist entries. Anywho, I'm happy for the meantime!

touch wood.