Unfocused screen on mouse movement

Dear all,

i've a MacBook 2,16GHz running 10.4.10 and i'm experiencing a strange display unfocusing behavoiur when moving the mouse pointer.
It's a very little effect but quite annoying expecially when reading.
It appears when mouse pointer come form the bottom to the up half of the screen and viceversa, letters get a little unfocused and also overall display size seems to change (the bottom bar moves of about 1mm up and down)
Also sometimes i get screen tilt when removing the dvi connector from an external display, moving the mouse get things ok, but i don't think it's a normal behaviour (!?!)
Have you ever experienced something similar ?
Have i to contact Apple support ?

Thanks,
Max

I have never seen something like that, I would contact apple support since it seams like you are going to need parts replaced. (unless somebody else here knows of the problem and its a software issue)

Solved !!! I had zoom on is SystemPref->UniversalAccess->Seeing, putting it off has solved the strange behaviour of unfocused display!

Maybe also the tilt after removing dvi output was due do this thing ?
We will see ....

Cheers,
Max

haha thats really weird. did u touch that setting before.

Yeah, this is quite a common issue:

You can activate the zoom simply by holding down the 'ctrl' key and using a scroll wheel, or by moving two fingers across the trackpad.

So it's easily activated by accident.