Macbook air: Screen flicker and speaker makes wheezing

1. I've noticed that images like this (http://bit.ly/RKNx2r | http://bit.ly/8LTYpl) are flickering on my display. Waves become more visible if brighness is turned to max. I opened the same images on the identical mac, and there were no waves.
2. When the volume is set to maximum, right speaker starts making wheezing. If to press and hold the right side of the keyboard, wheezing almost disappear.
Is there any solution on these issues? If no, should I contact the service center, or these cases are not covered by warranty.
Thank you in advance for your help.
*Model: MacBook Air 13'' (MD231RS/A)

I didn't bother because I custom configured my 11" to fully spec it out. I called my local Apple store just to see if they carried the fully-spec'ed ones and they said they only carried the base configurations.
So I called AppleCare and explained my problem and I did tell them it was hard to reproduce it and that there was no rhyme or reason to when/why it was happening. I told them it's happened when all I had was Safari open to browse the web and it's happened when I've had a bunch of things going on at once too. In the two days I had it, it happened about three to four times. Far too often for me to just ignore it or hope it will go away.
They were very nice about it and very apologetic that I was experiencing a problem and they are classifying it as DOA. They emailed me a FedEx label for 2-day shipping back to them and will overnight a new one once they receive mine back. Of course, I'm disappointed having to go about a week without it but thankfully it's not my only Mac.
Good luck to you but if this is a problem with some of the units, you probably won't have an issue getting it exchanged. If you do have a base configuration one, I'm sure you could try an Apple Store too.

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