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MisterP

macrumors newbie
Original poster
Anyone else having problems with font size, also my screen is chopping when scrolling?
 
With what exact MacBook Air and which Mac OS X version do you experience such behaviour in what applications?
How do you scroll (trackpad, mouse scroll wheel)?
 
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Have a look at Activity Monitor (Applications / Utilities /) and select All Processes and sort by CPU to see what the culprit may be.
Also check the "System Memory" tab to see what your "Page ins:", "Page outs:" and "Swap used:" are.

image below uses sorting by CPU as an example
Acitivty_Monitor.png

Further reading:
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